Peekaboo!

Oliver has taken to playing peekabo a lot recently, and always unprompted.  He plays like an ostrich, though -- I can't see you, so you can't see me.  He covers his eyes with his hands, holds them there for a few seconds, then removes them quickly and shrieks with joy.  This usually repeats several times before he tires of the game.  In the later rounds, he leaves cracks between his fingers and peeks at us to make sure we're paying attention.  One time earlier this week, we waited for him to cover his eyes, then hid behind the kitchen counter.  That, of course, led to two rounds of giggles.