I've warned my sister and brother-in-law that I will in fact attempt to corrupt my nephew, just a bit at appropriate life intervals because I think it's part of my job as an aunt. You know, to give the kid a little social capital on the playground by sharing with him key concepts and words that will keep him a bit ahead of the pack.
I thought I'd document that my work is beginning in part, and it was EASY. Simply lead by example, play some video games and little man wants to jump right in and become a "gamer." Love it. :)