This happened just a few minutes ago: let me set the scene:
I was on my way home from school, one block away from my house. Overall I was uncomfortable: 2 layers of scarf, one giant jacket, big handbag, big bag containing my toolbox. It was misting rain - couldn't be assed to try and hold my umbrella and did not have hood so wet frizzy hair (yay)! I walk up to a crossing muttering sarcastically (with huge smile on face) - and I spot a young guy on a bike coming up to the crossing. He was going at a good pace so I stopped at the crossing. The guy, obviously trying to be nice or gentlemanly or whatever, brakes to a halt. I look at him in a 'hey, you're seriously going to stop?' fashion, grinning ear to ear. So he stops completely - my face still a mix between disbelief and amusement. I just put a huge smile on my face and say 'Aaaaaaaall riiiiiight' and cross.
Also, if a car is coming up quite fast to me and I'm crossing alone I make the following faces: Oh No, OH NO, OOOH NOOOO!!!!, get to other side.