Here are the ideas how you can make your twitter profile, web page, blog visitor a follower
(1) Read blog post and comment your valid suggestions with your twitter profile in URL field and don't mind about no follow attribute. If your comment is a valid one, user will check your profile to gain your knowledge and share, by this they may follow and their friends may follow
(2) Retweet valuable tweets, suggestions and discussions and you may follow @retweet so that you can monitor which messages are getting retweeted. This way, you can find your own upon the continuous practice. By this your twitter profile might be followed by interesting people
E.g.: RT @jagadeeshmp Great SEO help resource Blog http://tinyurl.com/btqjz5
(3) Follow people back if they are interesting and update often
(4) Join twittgroups.com and tweetchat.com and add (#) hash tag to your update so that your message will be seen to the people in those groups and if your resource or updates are useful there is a possibility that they would follow you
E.g.: Great #SEO help resource Blog http://tinyurl.com/btqjz5 and check out in
(5) Increase your updates count :), it should have a mix of discussions, questions, feedback and retweet both techy and non-techy. So users may think following you may be useful lolls. Just keep in mind it should be useful and users should like you and your updates :)
(6) Add your twitter profile in all top social networking sites like linkedin, friendfeed, facebook, mybloglog, digg and the likes.
(7) Add your twitter profile in your email signature as well as in your blog or website
(8) Use TwitterFeed to automate your tweets that turns all of your blog posts into tweets
(9) In addition, try to enable you twitter account with twitterholic.com, twittercounter.com and twittervision.com
(10) Agree to the fact that this involves a lot of time and it would happen overnight. Guess this is the most important thing out of all nine :) Put you effort over the above 9 ideas and attract more followers and get more clients through twitter
If you find above post useful feel free to follow me and if any ideas are missed out you are welcome to add in comment section, with your twitter profile which will be an additional benefit to readers.If the idea is good, readers and I may follow you. Are you Happy! Now Howz that?