I simply painted two coats of On a Trip then put on my top coat. Once that was dry, I taped off part of my nails and added another layer of of top coat. While it was still wet I dipped my finger into the pot of glitter. I tapped off the excess glitter and them added a top coat over the glitter, and removed the tape. I was so happy with how it turned out, and cant wait to try it out again. The process was fairly messy but totally worth it.
On the nails the glitter doesn't look quite as holographic, but it is still super glittery, which makes me happy. On a Trip is opaque in two coats and such a gorgeous purple. In pictures it tends to photograph more on the blue side, so I added a blurry picture of just the purple on my nails that is more true to its actual colour.