As a foreigner learning American English + (pop) culture in the US one of my favorite things is to ask people to tell me the difference between geek and nerd. O

As a foreigner learning American English + (pop) culture in the US one of my favorite things is to ask people to tell me the difference between geek and nerd. Originally because I was having a hard time grasping not so much the meaning of the words but the connotations and projected values by those using the words. I still ask that question and find the discrepancies amusing. But I never heard anything about bitting chicken heads off and all that. Amazing!