What is the sound of one geek clapping?

My sister came down to visit my dad again this week and so I made the trek over to the house today to spend some quality time with them and, of course, to take new baby pictures. Twice in the span of three weeks is great (and I’m probably headed up to Vermont this weekend, too, so that means even more), and she’s really starting to show some great facial expression, even reliably grinning when you do certain things (a raspberry sound seems to be her favorite).