How to Impress Your Friend's Parents

1
Greet them. Shaking hands and saying a polite hello is a good start. referring to them as Mr (surname) and Mrs (surname) is often the best way to go.

2:
Engage in a conversation. Everyone likes being talked to. Try starting off with a current event in the news. Remember to be very careful with touchy subjects such as politics and religion. Even a topic like history can make the conversation awkward if someone interprets particular events differently. Try to get a sense of their general beliefs before attempting potentially hazardous threads of chit-chat. Weather, sports, and hobbies are generally safe. Try to be broad at first, find something they connect well with, and focus on it. For instance, if you mention you enjoy athletics, name any number of athletics you may potentially be interested in. Chances are, they've enjoyed it themselves at one point or another. If it becomes apparent they hold some belief that is particularly offensive or distasteful, so long as it is not directly insulting to you personally, bite your tongue, be tolerant of their perspectives. You're just trying to keep on their good side, not be their best friends.

3:
Always be polite. Remember your pleases and thank-yous. If you are invited to stay for dinner or a sleepover (NEVER invite yourself to anything), say thank you when offered and when you leave. After dinner, clear your plate. Ask if it should go in the sink or dishwasher. Once finished with that, Sit back down and maybe when your friend is done, politely ask to be excused.

4:
When they ask how you are, answer with something along the lines of "I'm fine thank you, how are you?". It's polite to ask how they are too.

5:
Don't be TOO polite. Some parents find this awkward and like chatty but well-mannered people.