Robyn Scott, Educational Consultant, TutorNerds LLC
What you choose to do for your community service will tell colleges a lot about your interests and abilities. If you don't have particular interests at this point I would suggest trying out a few different things until you find something that you enjoy. One great resource is Volunteer Match (http://www.volunteermatch.org/). Once you have had a few experiences you can then choose where you want to go from there. Colleges do look closely at extracurricular activities (anything other than your GPA and test scores) closely, especially if they have a holistic admissions process. Holistic means they look at the whole student, which includes volunteer activities. Do you have a subject in mind that you would like to study in college or ideas for a career? If so I would recommend volunteering in that area to start out.
I hope that helps!