I agree with CrAz3D, you are able to act with a certain mannerism yet also drink socially. Do you think plantation dances and such were dry? Of course not. If drinking in the South wasn't allowed, we wouldn't have bourbon!
I'd also say that I'm nicer, at least to most people, when I'm drinking - simply because I'm more social. I'll argue this point to the death, you're able to fit the idea of a gentlemen yet also have fun.