Hand sings

Hi, have you ever been on the field and the enemy is so close to you they can hear you, here i am going to teach you some basics hand sings. If you move your hand on top of your head like a roof and then pointing somewhere, that means cover you want them to cover where you are poiting at, If you hold up your hand with your fist close that means stop, you want them to stop whatever thery are doing, If you hold up your open hand, that means stop or the enemy will know where we are, If you open your hand and star pointing somewhere with it that means the enemy is where you are pointing at