You could say Alfie can "Bend it like Beckham". But we aren't talking about football because that's one thing he's not good at. Alfie is a Dominant Male who likes to call his ex "princess". In general, don't be an Alfie.
"Can you bend it like Alfie Bickerstaff?" Said Kal
"Oh aye mine bends at a 77 degree angle." Replied James
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"