go to
Template › Edit HTML
then search for
paste following code after it
</div>
<div dir="ltr" style="text-align: left;" trbidi="on">
<div class="separator" style="clear: both; text-align: center;">
<img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjk-SW4IkqZ40IBsTZ6lN0opYdrgB8rfP76lXK27rECYfVePNW8mwezlXBwj9lGBzWxPN2qS1HTOHUO-fTzgL6CBWmV5yZmgnsJR4eLyyBYtB2JWTqcsb7EXkM73-zkD6SL3XoOwF6RDAw/s1600/LookDown.gif" /><img border="0" height="95" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhZ_lAx6KYORvT3cF1l-nDKzFrHUalSDmt17QCV07HsSA5u1d6sddijtJeXmSloO7JmVmZuLBGyU0xaabC00hJcpTjWduKz_t8mIoot1S1WDwvRAWnyAdX3wC0OrF9yssYBGPp3_SZeebo/s320/feedback.jpg" width="320" /></div>
<div class="separator" style="clear: both; text-align: center;">
<br /></div>
</div>
you will get tis type of widget on your comment box
