Cassian shifts from where he'd been sitting, reading a book beneath the porch light, to standing up once he sees Jyn and Poe making their way down the street. He's pretty sure he knows how this looks, considering what he can catch of Jyn's expression from this distance, but he still raises his hand and gives a little wave.

Yep.

"Hey," he says once they're within non-shouting distance, and that's...all he's going to say, apparently, sticking his hands in the pockets of his jeans.