Honestly, DD didn't like toys at that age. She liked books, and she liked our stuff. You could set her up with a half-full bottle of water and she'd knock it over again & again. She liked to hide under blankets. She loved music and going for walks. She was just exploring the world, really.

DD also did not shake rattles, and never put things in her mouth, but I didn't think of that as "behind"--just different. smile