This guide was designed to help teenagers become involved in fun, alcohol-free activities. It provides youth with ideas on how to influence and change the factors that encourage teenage drinking. The guide has four purposes: (1) raise public awareness of the underage drinking crisis; (2) change community norms that encourage underage drinking; (3) create community-specific prevention messages and materials; and (4) ensure that special events in a community encourage healthy lifestyle choices. These purposes are addressed in seven sections in the guide. First, an overview of the problem describes alcohol's effects and the problems it causes. The next section shows how teenagers can learn more about the problem and how they can mobilize other youth in combatting alcohol abuse. Some of the strategies outlined here include raising public awareness through the news media and youth enforcement strategies such as vendor education, keg identification, and alcohol-free zones. Other prevention activities that are recommended are alcohol-free social gatherings, poster contests, interacting with peer advisors, and having a speaker's bureau. Contains a listing of resource organizations. (RJM)