It takes time, and sometimes it may seem random, but you'll accumulate more followers as people retweet your tweets, or people just stumble across your tweets in searches of their own.
You can start your post off with "RT @username" and then pasting the post itself, or simply click on the retweet link that pops up when you hover your mouse over the tweet.
Retweet - A retweet, or RT as it's called on Twitter, is the simple act of copying and pasting someone else's tweet while giving credit to the original author.
Web Designer Depot - Here is a comprehensive overview of Twitter, addressing everything from how to register to what a "retweet" is.
When you place your cursor over the tweet that interests you, you'll see options underneath: Favorite, Retweet, and Reply.
Backtweet - A backtweet occurs when someone posts one of your links (to your website or blog) without it being a retweet.
First, you can simply hover over the tweet and then click on the "retweet" button that appears.
The other option is to begin the tweet with the letters "RT," which stand for retweet.
When you retweet, you're reposting a message that originated from someone else.
You can also retweet quips and bites of wisdom from others that you follow.