It was not as much on the appearance as on the undefinability of that smile, which I find puzzling and I still don't know how to describe. I mean in your profile picture you have a smile I would define as frank and open, I guess. It seems natural. The one in your last photos, though, they look forced so they make me unsure. I may have tried to project my insecurity as garrulous humour to make it somewhat less visible on its own but as a device.