A family of these frogs are drawn to my porch light at night to feast on the bugs the light attracts. Naturally, I began leaving the light on just for them. A sort of motel six for tree frogs. I therefore assume this smile is genuine. Nikon D850, Nikon 105mm f/2.8G ED-IF AF-S VR Micro NIKKOR lens, Nikon SB-900 AF Speedlight set to TTL, 1/200 sec, f/13, iso 100.