Remember that you won’t be able to change the world with one presentation. This is especially true with speeches of value and policy. People don’t easily change their deep-seated values or behaviors just by listening to a single presentation. Keep this in mind as you’re developing your specific purpose. You might get better results by using the foot-in-the-door technique: asking your audience to agree to a small action in the hope that you’ll gain their compliance over time (Burger, 1999). For instance, rather than telling your listeners that they should eliminate all fast food from their diet, you may want to define a more realistic specific purpose: to persuade the audience to make healthy choices when ordering fast food.