[jQuery] How to handle onmouseover event with keyboard

[Aravind - User experience]

Hi Team,
How to handle "onMouseOver" event with keyboard.
Scenario:
With JQuery, "onMouseOver" on a "plus symbol", small banner with some
text content will be shown, it has been working with "Mouse(input
device)", but same effect has been expecting from "keyborad" tab
ordering on to that particular "plus symbol". Please provide the
solution.

Regards,
Aravind.