Can someone help me insert a fly-out "help" icon and window?

I created an interactive document with DC Pro and it came out fine.  I would like users to be able to click on a "?" for help in each section... clicking would bring up a window with plain text instructions I've written.  I got "Sticky Note" to almost do it... I changed the icon to a "?", but it prompts for replies and I know this isn't the way it's supposed to be done.  Can anyone help me?  Thank you!  Zac