Huaisang's paintings are lovely and he does like looking at them, so it makes him pleased that he's working on another one. He doesn't have such talent, and it's nice to see someone having the passion for art. There are things he likes doing, and there are things he indulges because the Captain allows for such things; that's more or less how Angelo defines himself.

"I'll look at it later, if you don't mind. You always paint well."

As for his friends, Angelo doesn't comment on it any further. He does not have close friends, he has acquaintances he observes and he moves on from one person to another trying to suss out information from people about this world. The Mission, and what he has to look forward to in going back, is what's important.