When your child does something that you want them to do more of, you tell them that they’ve done a good job, and tell them why.
Don’t do anything that you’re not prepared to repeat a million times.
Can you make a funny voice or a crazy face? Before you pull out your special moves consider this: the child will ask you to do it until it is broken. Have you ever heard of a child watching the same movie back-to-back all day long, for weeks? They do it.
I get caught in this one all the time because I am always trying to be fun with kids. Naturally they want me to do that thing over and over again, but I don’t let them win.