I was supposed to go out alone with one of my male friends for first time. I am not completely sure, but it seemed like he liked me. We meet in a little shop where some of our friends were having lunch. Before leaving for our date, this friend asked for a bottle of beer and drink it all by himself right in front of me. I don't know if he was being rude or if he did it to calm down before our date. I was not brave enough to ask why he did it. What do you think?