You definitely want to be CPR certified for all ages!
At that age simply going on a walk, singing or just interacting with them is pretty much all they do for fun. At that age you are typically just expected to adequately meet their needs (nap time, feeding time, tummy time, etc). Most parents just want to know you are... more
One of the big things kids do is see how far they can push until you do put your foot down! For example, if you say "If you hit your brother one more time" and they do hit them and you don't do anything, the child will see that... more