Alcohol is a depressant, so it should by all rights make folks "loosen up". I'm a very high energy, talkative, manic type in my day to day. It's more of a geographic trait, really, NY and all that. Alcohol makes me talk probably more like a normal person; slower and less pressured. Personally, I think it makes me dull, though different kinds of alcohol produce a different kind of buzz. Wine makes me absolutely mushy and boring, beer a bit less so.