A seed walks in. Well a currently humanoid being that if everything goes to plan will become a tree walks in. Ey's carrying a Macbook pro in one hand and wearing a t-shirt that says "I was on the Earth first contact team and all I got was this lousy t-shirt". Also pants. 

Griffie closes the textbook and waves. "Hi! Welcome to Milliways! Haven't seen another plant around here in a while."

The seed will look up from the mac that has been open in one hand.

"Sorry give me a second."

Ey will walk over to bar whisper something, and turn ey's back to Griffie while rapidly paging through a book. 
After a few seconds ey will turn back to Griffie with a drink and no book.

"Hi! Sorry I just wanted to make sure this was the real Milliways."

"Entirely understandable. Been here before?"

"Not in this lifetime."
Ey probably shouldn't do the deliberately mysterious schtick, but come on its Millyways.

Griffie, lacking a lot of memories from eir past lifetimes, does not parse this as a deliberate evasion at all.

"Fair enough. You know, I wonder what Bar's policy is for free drinks over multiple reincarnations of the same person."

A napkin appears, reading "I do grant free drinks multiple times to the same person across reincarnations under normal circumstances."

Griffie passes the napkin to the new visitor, and then awkwardly realizes something. "Greetings! I am Griffith, but Milliways is a casual space, you can call me Griffie. Would you like to share a name or other preferred reference?"

"People in informal circumstances call me Inovemekio* because my full name is 32 syllables includes ones where the tone markers are semantically meaningful."

*Pronounced with long o's but otherwise short vowels

"Inovemekio. Nice to meet you. Any plans for while you're here?"

Right plans, ey should probably have some plans for total multiversal domination or something. Also, should probably not admit to trying to form plans for "total multiversal domination or something" on the spot.

"I think I'll try to get some lost media from bar. Maybe try to find out about magic systems that you can learn if you're not from the original world."

"I've checked, Bar doesn't really have stuff like that that also doesn't require you to be in a world with the magic, or have a teacher with the magic, or have reference items she can't sell you with the magic."

Ey frowns.
"I guess, I'll try for lost media hand hope someone shows up before my bed time. By the way are you looking for anything here?"

"High-power sharable magic that people are willing to share with me so I can go fight the gods of death and tyranny and such in my world, information relevant to same, pleasant social interactions to maintain my sanity and possibly solve other people's problems because I like it when there aren't too many problems."

"Do you have any high-power sharable magic yet, and what is your tech level like?"

"In theory I have something I could share, in practice it would plausibly come with a massive load of side effects for your world and not just you so I'm not going to share it, sorry. If what you're holding is in fact a nonmagical information-processing device that's capable of storing a lot of books and doing a lot of math, there probably isn't tech from my world I can recommend to you."

"Yes, yes it is. And I was actually thinking it would most likely be a tech for magic trade because I'm not a serious magic user."

"If you've solved immortality nonmagically or alternately can demonstrate a working immortality solution that's just missing the kind of magic I have, I can look into screening you for whether I want to give you a second, more magic-compatible soul. However, I am concerned that if someone dies while having my world's kind of soul, this will cause problems."

"I don't have a non-magical solution to immortality particularly if you mean 'currently alive people don't die at all' rather than people with genetic alterations applied before they are born have vastly decreased ageing."

"Like I technically don't have either but that later is something that will plausibly be developed soonish as a side effect of other research and could easily be speed up if we were actually aiming for it instead of just using magic. Whereas even with magic we don't have a transferable way of keeping people from dying when they are killed."

"Oh. A preexisting-magic immortality solution works too, just, it is a magically significant event when someone with a specific-kind-of-magic-I-have soul dies and the event is magically significant in a bad way and I don't know if it'd, say, start some horrible chain reaction in an otherwise unprepared universe."

Luckily Inovemekio has experience explaining his species to other people.

"This is probably a good time to clarify that my species reproduces in a way that involves copying over large chunks of our memories and perceived-continuity-of-self. Which is how I've been to Millyways, but not in this lifetime. Otherwise, we're only even the no ageing kind of immortal if we take root and reach female sexual maturity. Our normal lifespan is something like 150 years for ymales and a little less for zmales."

And we don't publicly talk about what happens to people that fail to manifest any reproductive capability, ey doesn't say outloud.

“Memory and continuity is good, but … to my knowledge I’ve created no death gods thus far and I don’t want to break that record. I’m sorry.”

"I also approve of not having death gods. It might be worth telling me more about your world incase there is a solution to this or something from my world helpful to you that is cheap enough I can afford give it away instead of needing to trade."

"I can in fact pay in money for things, and then you can use the money to rent a room here and see if helpful people to show up. Anyway. Short version: People have souls made of 'positive energy', souls emit quintessence when stuff happens and the quintessence clumps up into gods of things like Rice and Good Tools and Truthseeking and Death and Tyranny and Miscarriages and such. Gods are very powerful, and the god of Rice can get more power by using her existing power to make the world more people-interacting-with-rice-ish, getting even more power. In the right environment, gods can get seemingly infinite power this way and shatter time and send continents flying. I want to fight them to the point where they decide to do this, and still win anyway. Well, I want to win against the evil ones, there are some good ones on my side."

"I would rather die than foresake the way of dreams. I'm also required lead off with that rote line when someone suggests that I sleep in an non-ritualy-compliant way instead of giving an actual explaination. That said yeah we do typically commit instance suicide if we are caught out such that we would otherwise fall asleep improperly."