Derek's looking down at his own phone while he's waiting in line, filling out this stupid app. It's not really his thing, but it comes recommended and Derek hasn't been good at meeting people on his own since before the fire. It's better than nothing. He's noticed that the line's moved and it's his turn, though, out of his periphery and looks up just in time to notice the bespectacled blonde's fist pump that probably would've landed a solid punch to his nose if he didn't have such good reflexes.

"Whoa," he replies reflexively as he moves, jerking his neck back and narrowly avoiding the fist. She starts to apologize almost immediately though and Derek smirks a little because that look on her face is kind of adorable, if he's honest. His eyebrows lift when she stops, taking an abrupt pause, before continuing.

Shaking his head and grinning, Derek shrugs. "You didn't hit me," he points out. "So I think we're good," he adds with a wink.