What is that game called where you cup your hand and touch the tips of your fingers and thumb together?

People have been playing this game for a while. You like cup your hand and touch the tips of your fingers together and you try to get people to look at it and if you do they get to slap you or something. What's it called? Does your school play this game too? Thanksss.|||The hand game I learned 111 years ago was called "Here is the Church, here is the steeple, open the doors, and see all the people." See if you can figure out how to do it. It doesn't involve slapping people for no reason.