Not sure if he is officially speaking yet but I understand what he is trying to say so I guess you can call these his first words.
1. Up - he will say up as he crawls up the stairs. If you say the word up he high tails it over to the stairs because he knows the gate is down and he can crawl upstairs.
2. Hi - he started saying this when I would walk into his room after he woke up from nap. Now he says it all day long. He will waddle into the room and just say "hi"
3. Besides speaking he is finally doing some baby signs. He will sign for eat, more right now. He understands what some others are but those are the two he is doing on his own.