You may have seen set ups like this before, perhaps at an event booth - or at a location, like this one. This photo was taken at the end of an event at the MGM Grand Las Vegas called The CSI Experience. This display was right before check out where you get your certificate for being a great crime solver.
They want you to stop, login to Facebook from a public computer, go to their Facebook page and click like. I don't know about you, but I'm sure not going to do that.
One solution could be a QR code. Point that code to the Facebook page - where Smart Phone user could scan and click like.
Would you enter your Facebook login and password on a public computer? What are your thoughts?