"Smart move, Brown," Steph mutters to herself as she watches the scene unfold for a few seconds before deciding that she probably needs to run in the other direction really fast. Quick as she can, she stuffs two batarangs in her left pocket (no time to get specific ones, she'll just have to see what they do when it comes to it) and a handful of shuriken into the right. It results in a cut on her hand from the sharp edges, but she ignores it in favour of putting her backpack on right and letting gravity do it's work.

It's a controlled slide down the roof, in that she doesn't slip all the way off the edge, but rather springs at the last moment to throw herself across the space between the building she's on and the one across from it. Her fingers find the edge of that roof, and the fact it's flat makes it easier for her to pull herself and sprint across to the other side. Once there, she drops off the edge onto a balcony, then to the roof of a parked carriage, then finally to the ground where she makes a sharp right and takes off at a run.

If she can get to a crowded area - the El Train station would be best - she'll have a better chance of losing him.