Board Thread:Support Requests - Community Management/@comment-12933939-20131103233110/@comment-5007040-20131104065518

What Kamikaze839 said is possibly the problem. What you describe is normal for many chats, there are no or less people online. The reason why hovering over the profile pictures doesn't work, is maybe because there's nobody in the chat, so you're hovering over yourself.

If you want to customize/make friendly you can do this with css in MediaWiki pages.

Hope this helps you!