When I was growing up, I was as socially outcast as any nerd could possibly be. I was in the chess club, I brought D&D stuff to school, I had every game system you could imagine, I spent countless hours at arcades, computer camp, loud presence in the Latin Club. All that stuff.
I was very competitive growing up. I can't even play chess anymore because I used to play tournament chess in school. There's too much sense memory of sitting in front of a chess board and getting super intense about it. It's ruined the game for me.
Growing up in the 70s and 80s, it took effort to be a nerd. You had to seek out the nerd stuff.