Alone but not alone too much of the time

I don't understand how I'm always in a room filled with people and never utter a word. I see people interacting all the time but not really talking. They seem to be saying words but the language is far from comprehension. It's as If I walking into a statistical analyst class and missed 89% of the lecture and trying to figure out where I can interject. That has been my days lately- I try to ignore it but I can't.