I’m sorry if I was unclear, I was asking if the person you’re talking to is a friend or a stranger.
assitant
I am asking if I should treat them as a friend or a stranger.  Do you know each other well?  If you’re just visiting the person, I am not good at personal persuasion, and you might be better off just asking them not to drink and drive.
assistant
How do you persuade someone to not drink and drive?
user
If you are at a friend’s house, are the person you’re talking to a friend or a stranger?
assistant
Are you asking how am I related to this person?
user