Following up on this, and I know it's been a while, but I wasn't able to get to Sephora at all. I got the gold eyeliner and it's completely invisible on me. Well, there's a slight hint of gold glitter, but that's it. I did get a fairly cheap one by Hard Candy though, so that might be why.

What I think I'll do next is use my usual brown eyeliner, and then go over it with the gold to give a subtle shimmer. I am having fun playing with it though. I have been sort of stuck in a make-up routine for a while, and doing something new is really fun.