The fake tans have a certain A&F je ne sais qui quality about them. The consistency of the tan renders it obviously fake and there is something about the eyes I find unsettling when I see fake tans (they seem to pop out more).
The fake tan has a poser surfer dude look to it as well, where I can picture the guy posing with a surf board for a summer holiday picture without having any experience surfing.
If you want a tan, please just go outside, gather up some radiation, and let your body react to it (apply sunscreen as needed and be aware of developing moles / sunspots you have).
Besides, in our increasingly ecologically conscious times, the real tan is the green tan (from our perpetual, clean resource, resident star).