To answer the thread title, I do think people can pick up on certain things or they may also project what they think. I've had people assume I'm married with children, maybe because of my job. I really can't tell what vibes I give off unless someone says something to me. We all build little imagined stories in our mind of who someone is or could be based on initial impressions. However, you really don't know unless you speak with the person. What annoys me is when someone pretends interest to satisfy their curiosity or feels they have you figured out completely because they intuited something about you. Just because you get one part of the picture doesn't mean you get the whole thing.