At 5 months! He is such happy baby. He Loves playing with his dad. Couple weeks ago, he said" umma" (mommy in Mien). He's rolling and tries very hard to crawl whenever he's on his tummy. I noticed his two bottom teeth on Sunday while he was being nursed. It was such a surprise to us. Whenever we are eating, he looks at us and moves his lips like he wants to eat as well. He's so smart and alert.