R relaxed a little, glad that he didn't have to be in 'business mode'. "No, it's fine, that's where most of the traffic comes from - no one appreciates actually buying art anymore, especially originals, they're 'too expensive', which, yeah, they are expensive but it's how people make a living - whoops, sorry, rant, but people who do want to buy don't want to wander around in an empty gallery. Just make some appreciative noises if someone else walks in and maybe stop and contemplate something."
He hesitated a moment. "Or, if you want, I can offer you a brief lesson or two, in between my many many customers."