How do people get so many Twitter followers?

[Dani R]

1.) follow a bunch of people with interests like you
2.) send out a lot of F4Fs (follow for follow) ex. F4F? @(twitter name) @(twitter name) @(Twitter name) @(twittername)
3.) write a funny biography
4.) use #TeamFollowBack in your biography and follow most of your followers
5.) follow stars such as Justin Bieber, Lady GaGa, Usher...ec...
6.)retweet a lot of other's tweets
7.) tweet often but not too often
8.) offer shoutouts
9.) tweet deep quotes
10.) talk about what interests you