Display only on a specific category

Gene,

You will want to do something like this:

<?php

if(is_category('your_category')){
// This will display if you are on the category page
wpsocialite_markup( );
}

if(in_category('your_category')){
// This will display if the post is inside of your requested category
wpsocialite_markup( );
}

Hope this helps!