15 out of 20 too, and I was distracted by thinking “goddamn there are a lot of hideous people where I’m from”.
Their “occupation” list sucks. It doesn’t list an “other” so if you don’t fit with what they list, you are stuck with “student” or “unemployed”…
…also I had no idea what to put for education… the options are:
GCSE level
A level
Degree level
???
Anyway, I got 16/20 and it would have been 17/20 if I’d gone with my gut on Vampire Boy. (and some of the fakes had eye crinkles so that isn’t it.)
If it makes you feel better, I got 8 out of 20. 
Ugh…11 outta 20. Any worse I would’ve wound up buying some internet stock off of one of them.
Wow, did I suck at that one, 12/20.
5 of the 8 I missed were really genuine smiles, so that must make me a cynic, too. The thing I tried to look for was the duration of the smile. If the person didn’t sustain his/her smile before going back to a straight expression I was apt to label it a fake, but apparently that method didn’t seem to work.
GCSE - Qualifications in England we get at the end of secondary school. (Age 16)
A-Levels - Qualifications we get at the end of college/sixth form (age 18)
Degree - Got from university (21+)
16/20
I actually tried to be a little contrary with this – it did me no good.
hmmm…19/20, altough I admit I didn’t know how well I would do. . . I too looked towards the eyes which must have helped, and also those close to full-blown laughter were kind of obvious. I missed guy #6 too…what a schmoozer.
19/20 here. Mistook a genuine one for a fake. Funny, I thought I’d do badly too, I’m not good at reading people.
15 of 20. Not to shabby, I think.
I watched the cheek/eye interaction. When I smile, I can barely see because the apples of my cheeks block my vision. Dead giveaway on most people.
I got 13/20. I guess I should have paid better attention. 
Some were a dead give away to me though, like #6 12, 14 , and 18.
19 out of 20 
10/20. I didn’t like taking the people out of context as I’m wholistic. And a damned good fake smiler (made lots of money out of that talent).
18/20. I guessed one real smile was fake and vice-versa. Not bad.
And number 13 scared me.
12/20… but that was after going 0/5 to start, so I still think I did okay.
12/20. So I’m easily fooled … I think I knew that.
19/20, and I second guessed myself on the one I missed (#19).
The test wasn’t that great, since you could tell the ones really smiling by the way their eyes suddenly caught something (I suppose “funny”) off camera and then they chuckled about it. The others just looked like zombies looking straight at the camera while they faked it.
Yes, the key was to look at the eyes, not the mouth. There’s a muscle under/around the eye that contracts in a real smile, which I have learned to isolate, so now I can “fake” a “real” smile, and even fake a “smiling with only the eyes” type thing.
And believe me, it was necessary to learn, because if one more person tells me to stop looking so serious, I will filet them with a spatula.
Sixteen out of twenty. I did better than I thought I did.
I got 12/20… Now I’m off to go give my credit card info to that nice man I met downtown!
11/20. Not too good, I guess.
I don’t mean to offend the British Dopers on this board, but you’ve got some rather homely-looking people in that country of yours