Training in kind words and positivity. My Mom was a pro at this and it helps not only with teens but everywhere....really.
I am honored to be from such an amazing family. This is my sister, she was sixteen when she arrived. Imagine her fate without my parents actions in the government to get her here. Let's change lives, one at a time. When you do acts of kindness, it touches you and you are forever changed. Try it if you haven't and if you have, I salute you!
Having five adopted siblings helped me understand how hurtful comments could be at a young age. My parents not only taught us to use our words carefully but to show zero tolerance when others were not thinking; coaching them gently to understand their own use of words. Don't underestimate the power of words.