We use a loud voice (not screaming or yelling) and tell him no get down. He laughs at first and if he doesn't get down by the 2nd time we ask him to get down we pick him up sit him down on whatever he was standing on and smack he hand and say no. He gets all dramatic for a minute then goes and does it again lol boys are too much.

Omg i dont know what to do @andrewsmommy

My son has started doing this on the couches and chairs. On the couches he tries to run off.