French manicures are fairly simple once you get the hang of it. Apply two or so coats of nail polish to the top 1/3 of your nail. Let them dry completely before soaking a Q-tip in nail polish remover and slowly "erasing" the nail polish from the bottom up in a broad C pattern. If you have long nails, stop just short of the whites of your nails. If you have short nails, stop when you are roughly half a centimeter away from the edge of your nail.
Again, give yourself another 10 minutes to let the nail polish remover dry completely from your nails before applying a top coat.
As a sidetone: I decided to knock another thing off my bucket list and went hang gliding for my birthday. It was an absolute blast. Pictures coming soon!