Tweet button are button which u can add in ur blog to make users follow ur twitter account.
HOW TO DO IT??
It’s very simple… Go to web address
“http://www.twitterbuttons.com/”
Enter your Twitter ID , then find a design and press SELECT. A window will pop-up containing your buttons code. Copy this code and past it on your Blog, Web Page or any where and let others follow you. That’s it… enjoy tweeting