I understood from when my (white, ginger, irish) brother used to make that signal back in the early 90s it was a W for West Side, to denote your affiliation with either east coast or west coast gangsters (tu pac, big eye...oops, I mean biggy smalls) a la gangster rap musiciansHow old is he really and what does that hand signal even mean? Is it meant to look like a gun saying he’s a gangster or something. If I saw him sat on the train with the camera I’d think he was an absolute moron. They pay more attention to the camera than their own kids sometimes. I bet it’s weird being in the company of them whilst they’re chatting away to a camera and their kids are trying to get their attention. But that’s all Jace will know. Now that’s really strange him thinking that all humans come with a camera attached
Given (mentally at least) Chris is also a (non irish) 13 year old ginger kid who never matured passed his white-urban-teen-thinks-hes-a-westcoast-gangsta-rapper phase I'm guessing he is also doing the WEST SIDE FOO! Hand sign.
(Note, my brother is a functioning adult member of society and nothing like chris)