Communicate them in a variety of ways, expect them to be followed, and do something when they aren't. Written emergency procedures should be clearly understood by the public address announcer. Identify supervisors and ushers by use of jackets, arm bands, or badges, and expect them to be active and visible to discourage problems quickly identified. Avoid seating bands or spectators near the visiting team bench and the visiting team spectator seating area. When someone is behaving in an undesirable way, or violating rules of good citizenship, do something about it.
Actions speak louder than words.
Inaction allows the establishment of undesirable examples and habits that can mushroom, lead to more serious problems, and result in negative learning. Have admissions, ticket sales, and parking lot personnel observe and screen people for possession of alcoholic beverages, intoxication, and abnormal or suspicious behavior. Alert crowd control supervisors to observe behavior and whereabouts of potential problem people. Supervise the rest rooms. Establish precise job descriptions, expectations, and authority of all working personnel and inform them of all rules, regulations, and emergency procedures.