The goal of twitter is to share useful information to a specific audience. Before worrying about how many people are following you on twitter, schedule 2 – 4 weeks of quality tweets.
For 1 – 2 weeks, DO NOT FOLLOW ANYONE, just tweet!
Tweet out #missiontweets. Focus on your audience and post tweets that will be of interest to them. Tweet quotes, jokes, and great articles. Remember, your #1 responsibility is to create great content that will be of interest to your followers!