If you are a girt never use the same good manners for the high class as you were used to as home you'd better watch and imitate the actions of an average American girl: ready to smile when somebody greets you , willing to answer any question any boy asks you. Don't ture and put up in rage when a boy approachs .He as well as his friends would be surprised . That would make them consider you to be not a kind of social animal.