That depends on which part of the sentence the phrase is in (whether those people are the subject of the sentence, or the object of it). If you're the subject of the sentence, it's "I" ("Your best friend and I want to take you to the club"); if you're the object, it's "me" ("Please do this for your best friend and me"). In either case, you can take the best friend out of the sentence for a moment, to determine whether you are "I" or "me".
U use my friend and I
U use my friend and I
It is etiquette to put the person you are talking about first and then yourself. This is not the right sentence to use 'My friend and me,' but, 'My friend and I.'
use their friend code
She is my bosom friend.
you ask them what it is! you ask a friend! you use bluetooth!
Yes it does!
== ==
You can only use people's friend passes on free battle.
The pronouns for your friend are he, him, or his if your friend is a male and she, her, or hers if your friend is a female. The pronouns to use if you have more than one friend is they, them, or theirs.
I use a cab to go from a lover to friend :P
It is the name you use in the game for others to add you as a friend.
It's appropriate to capitalize "Friend" as a sign of respect when closing a letter. For example: "Sincerely yours, Your Friend."