"An angel looks like yourself. They're beautiful winged beings who will save people from danger, give warnings, and even help save them from disaster. People often see them as celestial being sent by the heavens. At least, that's the belief."

He doesn't want to be inconsiderate. "Won't you be uncomfortable? Maybe we should sit at a table with chairs."

Which he did, "Let's take a seat and dine here, so you can stretch your wings."