when you write a program just to say "hello world"... in esoteric language,
when you buy some textbooks about programming yet you wear the same cloth eveytime you go to work,
when you have several dozens of rubiks cube and other different puzzles, and you solved them in under 30s,
when you prefer doing some riddles instead of doing body exercise,
and you do all of them, you know, just for fun.
is this geek enough?