Tips for a one year old that hits

Allison

My baby just turned one last month and he has started hitting! It just started a few days ago. When my husband or I are on the floor playing with him he will just walk up and slap us mostly on the face : ( we have been consistent with firmly telling him 'no hitting' but he just laughs and does it again. Any suggestions on how to get this behavior to stop? I don't want to be the parent that can't take him anywhere because he will hit other kids