We can put Twitter icon as floating image with fixed position, so it will attract your visitor to click it.How to? Follow this step below
1. Go to Layout > Edit HTML
2. Copy these code

    #floatingimage {
    bottom:10px;
    right:0px;
    position:fixed;
    _position:absolute;
    clip:inherit;
    _top:expression(document.documentElement.scrollTop+ document.documentElement.clientHeight-this.clientHeight);
    _right:expression(document.documentElement.scrollLeft+ document.documentElement.clientWidth - offsetWidth);
    }
    #floatingimage a img {border:0}

3. Paste before...

    ]]></b:skin>

4. Copy these code

    <div id='floatingimage'>
    <a href='http://twitter.com/emocutez'><img src='http://4.bp.blogspot.com/_nxOMLf2KJwU/S6IbRYlit-I/AAAAAAAACH4/d0YhssDaSuk/s1600/follow%2Bus.png'/></a></div>

5. Paste before

    </body>


6. Save and check your Blog...