What causes you to blush?

?What causes you to blush?
When people put me on the spot.


Or pretty much just embarassment.What causes you to blush?
An attractive man staring at me, even worse, when it's a group of guys staring at me.





Or





Telling a joke and realizing half way that it's not as funny as you thought it was... : P
Someone telling you look like Tom Cruise

asian hair