I know nothing about sports. Really any of it. Even as a kid I didn't want some other dirty sweaty person touching me. Politics is rarely discussed, because most anyone that I hang with is of the same mindset, so no need to just sit around and agree with each other.
Cars, girls, tools, trucks, more tools, how to improve designs, stuff like that. I don't really hang in groups of guys. At a party, I'll be in the kitchen with the girls. It's amazing what you can learn, plus they like to use you for an example when discussing things and get the male perspective.
The guys just want to talk about silly sports. Booooorrrrrrrrring.