What did teenagers in the 1970's and 1980's do for leisure?

This one's out of curiosity, aimed at those of you who grew up in the 70's and 80's. I'm interested in knowing exactly what people my age (I'm 17) did during their free time. Now with the advent of the Internet, I know a lot of mine and other teenagers' free time is spent online. What did you guys do for fun back then? Be detailed, and thanks!