Jake seems to be doing everything right now that Katie didn't have any interest in doing at this stage. And that's okay! Each kid is a unique experience and it keeps us on our toes!
He doesn't mind his feet touching the floor; Katie did not like it one bit.
He grabs for things; Katie was more of a watcher.
He has already rolled to his tummy, pushed himself backwards in his rocker; Katie did it too but she was more relaxed about the timing of her "milestones."
Jake seems to want to be more "involved" in what's going on. Katie has been happy to observe and then decide what she wants to do.
I'll have to see if Jake is as independant as Katie, as stubborn and as "know his own mind" as Katie. It looks like he's already practicing to be as happy and as sweet as Katie!