Yes, if it was a good friend.
Yes, if it was a great dream that I can't stop thinking of.
Yes, if I think there was a reason they were in the dream. I must tell them!
Only if I wanted to contact the friend as a way to break the ice or stay in touch.
Only if it were family, relative, or BFF.
No. My dreams stay private.
Only if the dream was non-sexual or intimate!
No, if I tell them, I might feel stalker-ish or make them feel awkward. I'd be embarrassed.