Help with customizing hover

Hello;
My website is http://orofinophysicaltherapy.com/ and I am trying to add the title of the linked post to the hover function on the “education” section about mid page. The hover feature is already activated with the “image expanding button” and the link to the post… but I want the title of the post to come up when they hover on the buttons…
This is my first post… so if this is in the wrong place; please advise. Please and thank you!