Unless they haven't been taught what polite and respectful is, getting most kids to be polite and respectful has a lot to do with how much they respect those around them, and what their friends act like. This subliminal program works from the inside out to introduce respect and consideration for others, and get them to express what they know about being polite and respectful. It also works to get them to disregard peer pressure in this specific area. Quite effective, but they must be taught what "polite and respectful" means first.
Script:
I now choose to be polite and respectful to others all the time.
I am now polite and respectful of others all the time.
Being polite to, and respectful of others makes me feel better about myself.
I feel good about myself when I am polite to, and respectful of, others.
I am intentionally and actively polite and respectful to others.
It is very important to me to be polite and respectful to others.
I now make it a very high priority to be polite and respectful to others.
Being polite and respectful to others makes me a good person.