It’s important to “reset” your pronouns. Pronouns are really versatile, but they take on the closest previous noun. So if you write something like this, your sentence may be misinterpreted:
Lucy walked over to our group and introduced herself. I looked at my friend Sally and raised a brow, then reached out to shake her hand.
The sentence, as written, reads that you’re shaking Sally’s hand. Based on the context, I don’t think that’s what’s intended. The sentence would need to be rearranged or you’d need to “reset” the antecedent.