A.R.
When my husband is playing with our son (9 mo), he will catch my little guy sitting upright, fiddling with a toy. In an Elmo type voice my husband gets my son's attention and then tosses a stuffed panda in his face. My little guy literally falls apart in gales of laughter. They repeat this until my son is laughing so hard he has the hiccups and can no longer sit upright. As the game progresses I notice my notice wiggles his toes and flails his arms in anticipation of the incoming panda. Oh my. Those two. Personally I get my son to giggle by dramatically pulling off his socks. I have done that since he came home from the hospital so it's our special little thing and always gets him going.