9 Tactics for Twitter:

How to Get Started and How to Get Followers on Twitter

1. Create your Twitter profile making sure you have:
   1. A smiley profile photo of yourself (or your logo)
   2. A customized background for your Twitter page with showing all your social media links. See http://www.digitaltrends.com/social-media/how-to-make-a-twitter-background/
   3. Follow five other people and/companies in your industry and/or with interests similar to yours.
   4. Search on Twitter for keywords related to your industry or interests. Follow 20 of those people each day.
   5. Tweet about topics related to your business and/or interests.  A good plan for tweeting is:
      1. Action, i.e. a link to an interesting article
      2. Action, i.e. a link to something entertaining
      3. Random thought, i.e. something you are thinking or something you did
      4. Action
      5. Question
      6. Start at item a again and keep cycling through the list
      7. Tweet about other people 12 times more than you tweet about yourself.
      8. Unfollow people who are not following you back unless they are highly valuable for some reason. Use http://www.justunfollow.com or http://manageflitter.com
      9. Participate in conversations on Twitter by tweeting at people in your industry and retweeting tweets that may be interesting to your followers.
      10. It’s ok to post about yourself occasionally, but make sure it’s 20% of the time and not 80% of the time.

Don’t just take it from me, read the following great articles as well:
http://www.buzzfeed.com/katieheaney/how-to-actually-get-more-twitter-followers
http://diythemes.com/thesis/get-more-twitter-followers/
http://www.wikihow.com/Get-More-Followers-on-Twitter
http://danzarrella.com/