Olivia's first word and Olivia's two ways of crawling

First things first: Olivia's first word was Dada!!! She said it a few times and we weren't sure it was anything but babble. But now she's repeating it, so it's confirmed.

Also, Olivia's crawling is getting much fast and she's pulling to stand and cruising around furniture. It will be no time until she starts walking. There's also something really interesting she's started to do. When she is on carpet, she crawls normally. But when she's on hardwood or a similar slippery surface, she slips her left leg (always the left) under her so that she can slide more easily. Olivia seems to have figured out friction. Take a look.