1. Follow to lead.
Unless you’re James Franco or the CIA, you probably won’t gain a huge Twitter following the second you join the social network. Following people or organizations you’re interested in will often lead them to follow you back. This is the quickest and easiest way to gain followers.
2. Watch your follower: following ratio.
An oft-cited rule of thumb for people or brands with crowds of followers is to follow at least 10 percent as many Twitterers as the size of their audience. This keeps an account from looking like a “broadcaster” and makes it easier to find interesting missives to retweet.
3. Share the wealth.