Ok, so this may be fueled by sleep deprivation, infertility veteran anxiety or preemie mom paranoia, so bear with me. I have 11 week old twin boys (almost 5 weeks adjusted). One baby loves to watch your face, and started smiling constantly in the past week. His brother will watch your face (and prefers people who are not mommy!), but is very stingy with smiles. He also stares off into the distance a lot during the day. I know it's early to be worried about autism or other disorders, but I can't help it. So, is this behavior normal, or am I just unfairly comparing him? How do you all not worry when their is a measuring stick laying next to them!?!