In the case of AIDS prevention, changing health behavior entails several specific steps. First, the information on what to do, what not to do, in clear, relevant terms in basic. Fear messages should only be used if they are posed at a level that motivates and empowers people to take positive action, not so high that the inspire denial or coercive actions. If fear based messages are used, they must include recommended protective behaviors. Alternatively, the positive consequences of engaging in the healthy behavior should be emphasized, and the altruistic results of responsible behavior should be stated. Since people are more likely to try behaviors if they feel capable, teach the desired skills. Good ways to teach new skills are to allow for planning and rehearsal, to show examples e.g. by video, to encourage the substitute behavior explicitly. People are more likely to adopt new behavior if they have choices of alternatives. Examples are ways to perceive condoms as pleasurable and popular, use of other modes of sexual expression besides intercourse. Campaigns are more successful if they are conducted in an environment conducive to change, if influential people are seen adopting the change, and if resumption after relapse and maintenance of the behavior are encouraged.