This week's manner from Brooke Romney's book "52 Modern Manners for Today's Teens" is:
SAY THANK YOU.
"There are a lot of people in this world who go out of their way to help you. Expressing gratitude to them on a regular basis makes them feel appreciated and more willing to help you in the future. A grateful life is a much happier life, so notice the small things people do for you and say thanks!"
