[MMM]

Unless you are talking to the emperor, there is never a time when "watashi" isn't polite enough. And it is perfectly fine for males to use "boku" in most situations.

"that person's name is Yamamoto-san," would I say "sono hito no namae wa Yamamoto-san desu"

Yes. That is a good sentence.


"kochira no namae wa Yamamoto-san desu?" Or would I just not say that and stick to "Kochira wa Yamamoto-san desu?"

Are you introducing him in person?