You can only teach chaining when there is a kind of behavior taking place. It might be necessary for people who are mentally disturbed and people who are involved in an accident. Target behavior needs to be carefully reduced in to s-r segments. Self engage-writing down the details or steps to take of the tasks. Third party-record the behavior of a person engaged in a task. Expert get an expert to get a list of steps showing you on what you"re supposed to do. Sd1-brochures envelopes on table r1 pick up brochure. Sd2 brochure in hand,envelope o table-r2 puck up envelope. Sd3 brochure and envelope in hand-r3 put brochure in envelope. Examples include; nail biting and it could be a behavioral excess or deficit. Collection of information about the antecedents and consequences of a target behavior. Tantrums, wrist biting, hand waving, hair pulling and binge eating. Informal-talking about everyday understanding of your behavior or behavior of others.