By Being Awesome & Giving Good Answers & being Descriptive on Answers like not Just putting "Yes" to a Question & don't beg for Followers & Sometimes even being Funny with Certain Questions is Okay, Sometimes Questions on here aren't always that Serious, but Overall Just Ask Good Questions & Give Good Answers, I will Follow u Also to Help get You Started :)
Become an active member. Put effort in helping, ask interesting questions. People will get to" know" you and if they like what you have to say they follow. Unlike FB & Twitter, it takes time and you earn followers. No contest so don't worry, have fun!