I am so emphatic that i avoid to interact with people unless it is too necessary. Let's say i went into a shop to look for something. When i ask the price of an item and it is higher than i expected the fun begins. I say to myself; "ok, this is too expensive. It would be stupid to buy this with this price but i should find a good excuse so the sales person won't feel too bad". Then i find myself trying to convince him/her that it would not be beneficial for me to buy this good. Maybe you can call it as simply as being shy but i really give a damn to what people feel.