I get really chatty and really giggly and can get fairly loud.
I remember when I was in Scotland last, and I had put away a good amount of wine into my tummy (I think it was wine...), and me and Fyndir were chillin', and he started telling these olddddddd jokes (like "Why was the skeleton sad when he went to the ball? Because he had NO BODY to go with"), and I was laughing so hard I was crying.
I also tip my waitress fairly well, I'm usually trying to do math with my poor brain late night when I've had a few.
:D