People don’t need alcohol to get drunk. The organizers of the “Expectancy Challenge” can prove it using groups of college students, a bar, and both alcoholic and non-alcoholic drinks, Psychotherapy Networker reports. The key is that participants in the don’t know whether they’re being served the alcoholic or the non-alcoholic drinks. A few of the students inevitably end up drinking the non-alcoholic stuff, and still end up feeling drunk. Once they realize that they’ve been duped by their own brains, the program is able to teach them that you don’t need alcohol to have a good time.