Your 20 month old

This month, you may observe -- or experience -- your child hitting, pushing, biting or tugging to get his way. You'll need to calmly make clear that such actions are never acceptable. Something else you may be noticing: toddlers like to play with their genitals. Their natural curiosity is nothing to worry about -- unless it's happening non-stop. When your child touches himself in public, don't make a huge deal about it. Just explain that some things are done only at home in private.