Adam has definitely learned the word 'no' (along with milk, food, stop, his name, and probably a few others that he doesn't really show much reaction to). The end of this video illustrates 'no'. He loves chewing on pretty much everything. This doesn't always please mommy & daddy when he tries to chew on the dining room chairs or leather sofa for example. So we try to discourage chewing on non-baby things, generally by substituting the not-so-good thing to chew on with one of his blocks or other chewing toys.

Also in this video is some fun action with the rocking chair (sorry for the bad back-lighting), and some general happy standing moments.

This video is from May 5th: