Sea of analysis

I have a problem. Whenever I talk to people, I nod, they think that I am listening and comprehending what they are saying while in reality I am not. I loose track of concentration and go deep in the sea of analysis. I watch the way they speak, their looks, their eyes movement, every thing's visual in my book. I live in another world of meanings and only wake up when they are done with their talk. That is when I either haha or boohoo or just nod depending on what their last words were and their facial expressions.

Some are pleasant to analyze, others are just a turn off. In the end, your perfume does the trick.