|if you look closely enough, you can tell it's on the cheek. i know it doesn't if you're just watching it casually and not paying attention, but still. pretty much the whole point of iPsycho is that Nora is well... 'psycho'. She doesn't have friends, she does not interact with people much. That's why, I'd guess, they had her give a girl a kiss on the cheek (made to look like an actual legit kiss). A lot of girls high five each other, and/or hug each other, but how often does one girl give another a short kiss on the cheek? Probably never, or at least, it's uncommon, and I think that's why they chose to have her do that; it goes along with her socially awkward stance. She got excited when another girl and her were talking, and instead of doing something normal, like a high five or a little hug, she goes in for a peck on the cheek, to showcase, IMO, how she is different then everyone else|
Actually, a girl giving another girl a friendly kiss isn't that uncommon. The way Nora did it, is uncommon.