At this age, your baby is thrilled to be able to hold things in her hand. A game of pass the hat – or rather, grab the hat (or the nose) – will send her into smiles of surprised delight.
Appropriate for: 4 months to 1 year
Skills developed: Sense of cause and effect
What you'll need: A hat with a brim
With your baby on your lap facing you, place a hat on your head, then lean in close. Let your baby reach up to the hat and grab it off your head. She may even manage to put it back on your head (with a bit of help from you). You can switch to another brimmed hat, but don't do it too often, which can confuse your baby. When she's done playing with the hat, give her nose a gentle pinch, then wrinkle your own nose and lean as close as you can. Once she reaches for your nose, she may be surprised to find that she can't remove it!
Information and photo taken from: http://www.babycenter.com/0_lets-play-pass-the-hat-tickle-a-funnybone_1498454.bc