Both my friend and I are outgoing.

我和我的朋友都很外向。

youdao

My friend and I returned to town by the midnight express.

我和我朋友乘午夜的快车回城。

《新英汉大辞典》

A: Yeah, my friend and I hiked in a very wild part of the national forest.

是的，那是我和我的朋友在国家森林的一个很偏僻的地方旅行。

youdao

For example, I can-- and having the past experience-- envy towards my best friend, that in and of itself does not make me a bad person.

举个例子，我可以…,因为以前的经历-,嫉妒我最好的朋友，那种情绪本身不代表我是个坏人。

哈佛公开课 - 幸福课课程节选

So I threw a party in New York, and her best friend, my co-worker came, and she brought her,

我在纽约开了个派对，而她最好的朋友，也就是我的同事，把她带到派对上去了。

第一次与妻子见面 - SpeakingMax英语口语达人

And I came together and collaborated with my best friend and co-founder, Tracy Coley.

NPR: Acting Students Ready for Their Next Role

"I was in the pub with my friend, I'd had a few pints and came up with this idea - before I knew it I was training for it, " said Brian.

BBC: Norfolk - Norwich's Tuk-Tuk coffee mobile

And I invited my friend Dr. Michael Rich--he's an astronomer at UCLA--to the studio to see if they hold any merit.

NPR: Some Very Bad Global Warming Solutions