I have brown eyes and I have learned what colors suit me and what colors make me look like I had a fight with a makeup artist.
Gold looks good on brown eyes because it is part of that color palette (what the heck, gold look good on everything!). I like to wear a smoky eye and then fill it with gold on the inside crease. Sometimes I wear black liner on the top lid and a small golden line under the eye. Looks pretty good if you ask me.
On the bottom I have posted three makeup tutorials I found on Youtube. Enjoy!