Prompts are either stimulus prompts or response prompts. Response prompts are supplementary antecedent stimuli used to occasion a correct response in the presence of an SD that will eventually control the behavior. With response prompts, you have modeling, verbal instructions, and physical guidance. Verbal instructions can be either vocal or non-vocal. Vocal instructions are oral and non-vocal instructions can be either written words, pictures, or manual signs. Stimulus prompts are movement, position, and redundancy.