Look at me! I can sit up! (Ok, not really. I need to lean against the couch and tend to slouch after a while, but it's good practice for the real thing)
I can hold things now. I like to swing around this rattle and stick it in my mouth. I've whacked my nose a few times but I'm learning.
One of my new favorite games is Super Baby. I can practice holding my head up and get to see Mom at the same time. Much better than staring at the floor during tummy time.