Jerz has it right. ECs are about showing how well rounded you are. They don't have to be community service, but it's a plus.
A lot of people struggle with ECs, I know I did, but it is a very broad category. You want to convey to the adcom about who you are. I think everyone has ECs, but they're not always easy to identify.
It's always nice to describe your EC and show how important it is to you.
The most obvious is something like community service, but it can include:
- hobbies: lets say your really into cars, maybe you bought an old beater and spent hours working on it?
- academic interests outside your degree: maybe an interest in the classic literature or the history of a specific region or culture?
- sports are a good one! Maybe you've been involved in tennis since your were a kid. You don't have to be a state champion (although that helps), just show that you've got interests other than going to b-school
RF