3. When you were a kid, your number one way of showing a girl that you were smitten with her was likely by stuffing some sand in her mouth. Both men and women use teasing as a way to let another person know they're crushing on them.
3. 男生小时候喜欢某个女孩子就喜欢把沙子扔到她嘴里，然后被女生满校园追打。男女其实都喜欢用这种方式来让另一方知道，他们对对方是有感觉的。