Respectful, at least. Ren can reward respect with respect so he gives his own bow in response. The man doesn't seem to be a Force user or recognize him but it isn't in his interest to make an enemy of him. He knows medicine. Those types of people are useful regardless of their ability in other things.

"It's all right. Someone will know it eventually. So you aren't from this system either? Do you know anyone native to this planet?"