Along with the mascara and lip gloss, something to make you look a little more 'awake' is white, or very light eye shadow. I use my finger but you can also use a brush, just dust it onto your lids, don't pack it on.
My eyes are generally somewhat red because I don't get much sleep, so when I go to something special I'll use eye drops that reduce the redness (pretty sure all do..) and that helps brighten your appearance as well. (:
Like lioness said, go simple and easy.
Falling Maples Homestead www.fallingmaples.wix.com