The bump causes her to jump, losing some of the clothing that she's stacked on her arm as she turns around to see who's 'oi'ing her. What she sees is an anthropomorphic cat. Not your usual run of the mill person on the street. Honestly, it'd be a weird sight if one of her best friends couldn't break the sound barrier when he wanted to. Instead she just takes the sight in stride.
"Actually you ran into me." Then she notices the wince. Oh; did he hurt himself? "You okay?"