Gottwinkies had asked the other day how to do that basket woven-line pattern from the Easter Basket Nails so here’s a quick breakdown — after you get your base down (this is Essie Tart Deco, super yummy) you first want to start with a line of color on each side of the nail meeting at a roughly 90 degree angle. If you can manage to put one low and the other higher up on the nail (so you’ve got sort of a lopsided start) you’ll probably like how the overlap works as it moves forward. And don’t worry too much about perfect lines; since you’re putting the colors right up next to each other you can correct any bubbled edges with the next round of polish.
After the first pass, go in with your second color and follow the side of each of the lines you just added — either side is fine, though if you’re trying to do a weave pattern that stops at a certain point on your nail you’ll want to keep an eye on how far up you go.
Then you just keep repeating the process, waiting for the paint to dry enough between applications so that you’re not streaking the colors together at the intersect. Eventually you’re going to get to a point where you see something like this:
Which is cool and all, but there are some lines — the last ones you added — that obviously don’t go “under” any of the other lines. This is where you go in with your colors again and create those under/overlaps where it makes the most sense to you. I’m sure there’s a better science on “well this should go over and this should go under and blah blah blah” but I just kind of look at it and go “well shoot, if this was really woven that strand of color would totally go under this other one” and then just draw in a segment of line that matches with the grid (pictured on the middle finger below). Seriously easy, just make sure you have a steady hand/haven’t had too much coffee!