Gaining few followers daily on my Twitter account

Since I created my own Twitter account a few months back, I only gain a random of 5-10 followers every 1 to 3 days. Right now, I have a total of 300+ followers and my goal is t reach at least 1,000 to 3,000 followers. The reasons why I don’t generate enough followers on my Twitter account because I don’t apply my SEO tactics there. I have seen such Twitter users who promote using their URL’s, which can be shorten rather than putting up a long tail URL in the message board. Last time, I have tweeted about Michael Jackson and eventually I gained 30+ followers in just one day. But what’s the point in me, since that day SEO is not my type. But now I realize that when I do SEO here in Twitter, and PM lots of those who followed me, along with the link I promote, I could gain back something that I lost and to increase more visitors in my Twitter account.