Definition No. 2....

Fiddling- nonchalantly and discreetly taking pictures of unsuspecting members of the general public.

It is a term I invented myself when you pretend to be fixing your camera or sit looking stupid like you can't figure out how to work a camera at all and move it around the air like your 'looking for signal', even though its a camera not a phone, when your actually targeting your models, and for my first attempt i think i will have to work my way up to people in the street!