1. Decide if the other person said or did something that you want to thank him/her for.
2. Choose a good time and place to thank the other person.
3. Thank the other person in a friendly way.
4. Tell the other person why you are thanking him/her.
From Skillstreaming the Adolescent: A Guide for Teaching Prosocial Skills (3rd ed, © 2012 by E. McGinnis, Champaign, IL: Research Press (www.researchpress.com, 800-519-2707