Creating a adding a Tumblr Ask Me Box it’s really easy. It just requires to embed a bit of code in your theme html so you can create both the form through which you will be receiving questions and also the link  I placed mine in my Tumblelog’s sidebar, but you can do it anywhere you want.

How To Add a Tumblr Ask Me Widget on Tumblr.

1. First, you need to enable the Ask Me function which will eventually create the contact form page.  Go to Customize >>> Community and check Let People Ask Questions (you can also choose the page title).
2. Now you need to insert the html code that includes the link leading to the page;


{block:AskEnabled}
<li><a href="/ask">Ask Me</a></li>
{/block:AskEnabled}


3. Paste this code wherever you consider it appropiate inside your theme, I inserted this feature in my sidebar.