A Simple Game - 1st Simple Clue

The reward here is simple too - see?
It's all about something
that doesn't appear immediately-or
come to your attention unless you are
thinking in ...........?

ah hah...first clue...and a visual...
So publish your comment - and we'll
get back to you with the truth - if
you are on course we'll let you know-
if your nowehere near...we'll let you
know that too...you're gonna love the reward!