My reaction really depends on the situation: if it's daytime & lots of people are nearby just keep it moving
At night or when I'm alone I usually just go into the nearest shop and call someone/wait until they're out of sight Always keep a straight face
I rarely get cat called but i do get intense stare from time time usually from cadan men. they could be talking to some and not know they're just starring while everyone else can see whats happening .I just keep walking act like nothing is happening lol this is why i always wear abay now adays. am not sure if this is compliment or that should stay away from colorful outfits.