U want to know how we react!!! hehehe…ok ill tell u…if the guy is cute we will look at him, but make sure he will not c that we r lookin…
If the guy looks like some kinda mawaali ya gonda..and he is staring at us..then depends on the girl..I will give him a bad look which says “Get Lost”…some girls will jst pretend they did not notice.
If the guy is jst really really wowwww..then we will really check him out, but ull have no clue that we have checked you out unless we want u to know that we checked you out.
Sometimes we dont even notice that you are there 
Ur right…depends on the culture..some of the idiots will jump in front of you…and the song thing really annoys the hell out of me…unless it is my honey who is singing…he likes to sing when i get mad at him… hehehe