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Re:Help me figure out how I lost this bet to an engineer by grecy on Wednesday September 11, 2013 @04:08PM (#6369669)
A few ideas come to my head.

* Everyone was at the original bar at the same time - someone else had photos from the night that had her and other people in them, and those people (her friends) could be found online.

* The bar had some kind of "sign-up for x" list, or some kind of contest, or some kind of photos of the night, which were helpful.

* You searched twitter/facebook/whatever for a girl posting about a boy she just met at bar X, blah blah

* We know she was going to some kind of event - you guys figured out what that was, and found a guest list or something.

* You guys did a some wi-fi sniffing and read a few emails. He did say he emailed you the photo, so you know which account to listen for.

Are any of those close?

Re:Help me figure out how I lost this bet to an engineer by err4nt on Wednesday September 11, 2013 @06:43PM (#6370646)
If it were me, the first thing I would do knowing her high school is create a Facebook account and upload her photo (with her face) and see who Facebook suggests I tag in it.

I'm not sure what the rules are concerning tagging suggestions, but I have noticed that it suggests that I tag people I know in other people's photos so you KNOW they recognize everybody in every photo - the trick is meeting the right conditions for it to allow it to share that recognition match with you based on her privacy settings I think...

Re:Help me figure out how I lost this bet to an engineer by philfreo on Wednesday September 11, 2013 @04:29PM (#6369814)
Some good ones, but nope.
Re:Help me figure out how I lost this bet to an engineer by danso on Wednesday September 11, 2013 @05:05PM (#6370106)
So in the other post, you said you inadverdently realized you had a second photo of the target (which presumably contained key identifying info)...so, are you saying here that that second photo didn't come from investigating the event that she was at (i.e., if it had a meetup/lanyrd page, looking at all the attendee photos and seeing what looked like her?)
Re:Help me figure out how I lost this bet to an engineer by philfreo on Wednesday September 11, 2013 @05:10PM (#6370143)
The second photo that we later realized we had was one a teammate had taken himself and didn't have anyone else in it. I think it was doable with just 1 photo, and I'm not ready to share with Justin how the 2nd photo helped. :)
Re:Help me figure out how I lost this bet to an engineer by grecy on Wednesday September 11, 2013 @05:20PM (#6370211)
So you had a second photo of the girl, taken by a team mate, but it has only her in it?

OK then, there is something identifying about this girl, which the second photo gave you

* Tattoo

* Glasses

* Hair

* Amputee

* Scar/burn, etc.

* particular purse/hat/watch/accessory

* etc.

Re:Help me figure out how I lost this bet to an engineer by gocard on Wednesday September 11, 2013 @08:50PM (#6371255)
Or maybe she was wearing a t-shirt brandishing the company she works for.
Re:Help me figure out how I lost this bet to an engineer by dhm116 on Wednesday September 11, 2013 @07:34PM (#6370932)
An article of clothing or accessory of some kind from a conference she attended that helped you look up attendees and identify her, or some other identifying club/service that contains profile pictures?
Re:Help me figure out how I lost this bet to an engineer by cincinnatus on Wednesday September 11, 2013 @08:02PM (#6371057)
Name tag
Re:Help me figure out how I lost this bet to an engineer by fr0sty on Wednesday September 11, 2013 @05:20PM (#6370214)
But it had _something else_ in it...

A credit card slip with her name on it perhaps?

Re:Help me figure out how I lost this bet to an engineer by mistercow on Wednesday September 11, 2013 @10:27PM (#6371680)
In a single picture where she was a random bystander? Unlikely that you'd be able to read anything that had her name on it, unless it was an actual name tag. Even then, people don't generally stand very still for photos that are taken of other people.
Re:Help me figure out how I lost this bet to an engineer by autoreverse on Wednesday September 11, 2013 @11:46PM (#6371937)
Sorority/college sweater?