Roxy barely missed a beat as the stranger in a skinny suit came near. His fingers were just barely able to touch her rims before she deflected away from his arm, her right one coming up to sort of swing around and defend away from his left. Then she stepped back and resumed a more casual position, although allowed herself a demure appearance as if his coming in close was flattering despite frightening her away.
"Neither. I teach English. Self-defense is something we simply all learn," she explained, ignoring or perhaps 'not understanding' his commentary about her glasses.