We are recruiting participants for several studies. At the moment, all of our studies use very similar procedures, with portions that take place both inside and outside the lab. Our laboratory tasks are intended to look at the perceptual, memory, and learning processes impacted by alcohol. Our ambulatory (i.e., outside the lab) procedures look at mood changes associated with drinking as well as the context of alcohol consumption. Some of our studies involve groups of friends, whereas others don’t (although we always ask for friend referrals).