A single dot is eye-catching but not over-the-top.
So is a single stripe.
Keep things subtle with a nude base.
Gray is a great neutral base as well.
A pop of neon brightens monochromatic nails.
You can't go wrong with classic black and white.
Add some glamour with hints of gold.
Soften a french manicure with an ombre tip.
Decorate an accent nail.
Try simple designs on basic colors.
And in case your nail art skills aren't up to par...