Go to a blog or profile that interests you and click on "Follow" in the left menu. This person will receive an alert, letting them know of your request. If they follow you back, you will automatically become friends.
But how do I find profiles that I like?
Search for members located in the same city or state as you or blogs that interest you (an artist, a tv show, a celebrity...), or just wander around the site (discover blog stars and their friends, or the-skyrock-team's friends...)
Your friends are not on Skyrock yet? Invite them! http://the-skyrock-team.skyrock.com/3125242817-SHORTCUT-TO-MORE-FRIENDS.html