Use polite or the family.Friendly atmosphere.There is a great sense of humor.Easy thank youWave back.I don't want flashy.Don't lose temper.Do not refuse food.Don't walk streets alone.Don't your luggage bags, wallets.
Use or recommend a family friendly , with a great sense of humor, simple thank you wave back, not flashy , not upset , do not reject the food , do not walk the streets alone Do not leave your wallet in the back pocket.