Tip to validate whether someone is watching you. Try it!

Here is a little tip to validate whether you think someone is staring at you or not in a meeting room or group. Simply yawn. If that person is actually paying attention to you from the other side of the room then they will yawn too. Try it. It works and is a little funny. Make it subtle as to not create a contagious yawn from everyone, but one that only people looking at you will notice.