axenso

You can enable a tooltip that shows info about user/author when you rollover/click on related avatar.
Let’s speak clearly: if you are loooking for a plugin that enables the standard Gravatar hovercards, this is not the plugin right for you. Please look for another one.
When you rollover/click on an avatar (e.g. of a comment author), a tooltip popups and shows:
<ul>
<li>some additional links if the author is a registered user: e.g. to user post archive, to user external website, to user blog (if multisite)</li>
<li>some info from Gravatar if author is registered to that service: e.g. location, “about me” description, websites, other account pages (facebook, twitter….)</li>
</ul>
In plugin settings you can set up the javascript and css main options.
The plugin comes with some filter hooks, so you can customise the tooltip content at all.
The plugin uses <a href="http://craigsworks.com/projects/qtip2/" rel="nofollow ugc">qTip plugin for jQuery</a>.

Avatar Tooltip

To show a tooltip with info (member info and Gravatar profile) when you mouseover/click on an avatar.

happyAnt

Show product short description tooltip info when user hover, designed to work with Woocommerce. 
Please note, this plugin has no effect if Woocommerce plugin not activated or has no effect if somehow your site did not have jQuery installed(which normally not happens)
Found the plugin useful and want to donate? buy me some tea at <a href="https://paypal.me/cuongdc" rel="nofollow ugc">Paypal.me</a>, thank you very much!!!

Woocommerce Product Hover Show ToolTip Info

Show product short description tooltip info when user hover, designed to work with Woocommerce.

Avatar Tooltip vs Woocommerce Product Hover Show ToolTip Info