For a while now, strange things have been happening around her. Weird static shocks, things that seem to glow when they shouldn't, a dropped cup that suddenly stops in midair for her to grab again. It's this last that convinces her. Something fucky is going on, and it might be her. She starts trying to focus the effects, starting with the telekinesis(?). She learns she can grab and move small things, a cup, her phone, a thin book, without touching them. She can crumple a sheet of paper and smooth it out again like it's new. She can get a stain out of her shirt without washing it.
One evening, she's out in a field trying to get a handle on controlling the sparks she puts out when she gets frustrated. This is not getting easier over time.