start of with a hello that would be a start, then once that is done go into the conversation about how you became friends with your friend! VOTE FOR US!
Hey! how are you doing? Then you could ask how she/he knows your friend, what are their hobbies, whats their favourite subject they study at school, where are they from, or you could answer any...
That's not actually an either/or question. One of them is always wrong, the other one might be right or it might not.
"me and my friend" is always wrong."My friend and I went to the beach", but "She...