Weirdly, Anathema's already experienced something like this before.

She remembers seeing a robber with wonky superpowers going floating helplessly away into the sky, and so when she sees it happening again, she doesn't hesitate: the witch just goes running headlong with a shout ("Hang on!"), summons up a gust of wind to try to blow the woman a little closer to her, leaps up, and just grabs one of her boots and hangs on for dear life as the pair of them float through the air, trying to use her weight to drag the other brunette back down to earth.

It is not, exactly, the most dignified way to meet someone in-person for the first time after a network conversation.