Sure, this thread hasn't been touched in 4-1/2 years, but it's a great question and could be enjoyable learning about some of the newer members...
Myself... In my early 20's, I was the happy drunk but when something happened that I didn't like, I got angry. I was a quiet kid in my teens and early 20's. It really brought me out of my shell.
In recent years... I really haven't gotten drunk in about 10 years. Usually a good buzz. I become more talkative and more flirty. The one complaint from my friends when I'm drinking is that I talk REALLY loud.
Michelle was a happy drinker, not going to say drunk because she only got really drunk a few times. When she'd drink, she would laugh at anything. She loved to dance anytime, but a few drinks was dancing fuel for her. She would also become more daring. About 10 years ago we were out with another couple in a Royal Oak bar, when Michelle suggested we go to a strip club. We ended up at one of the nicer strip joints on 8 mile. Other than the dancers and waitresses, she and our friend were the only girls in the place. A song came on that Michelle really liked and she stood up and started dancing, then started giving me a lap dance while clothed. The manager came up and suggested she dance on stage. She said, "I won't take my clothes off." He said, "You don't have to." So she and our other friend got up on stage and danced around the stripper while she undressed and worked the pole. Some younger guys started chanting "strip", but she just smiled and shook her head no. She danced about 3 songs then came back down and gave me another lap dance as the other guy we were with got one from his wife. Then Michelle picked a girl out and had her dance for me. Never would have happened if alcohol wasn't involved. Should also mention that it was the only time during my marriage that I have been to a strip club.