I'm trying to paint my livingroom tomake it look brighter and bigger. I have wood paneling that has already been painted off white, but it looks so plain, what can I do?

You Can Try A 2 Tone Paint Scheme, You'll Need To Install Some Chair Rail And Paint The Bottom A Darker Color And The Top Lighter.
In My Home What I Did Was Painted The Bottom, Cranberry And The Top More Of A Light Tan, I Like Bold Colors , You May Not And Can Go With A Darker Shade Of Khaki On The Bottom And Something Slightly Lighter On Top.