"Nail art is a language."
Perhaps this is another way of saying that nail art is a form of self-expression, whether it's a DIY or someone else did it for you. We choose how we wear our nails. And for some, nails have become a channel to convey thoughts or feelings that we simply can't say with words. You might find this hilarious, but recently, I've been using nail art as a post-it to remind myself of things. So when I am feeling lonely, I make sure I paint my nails with a design that will tell me to cheer up. Are you guilty of something like this, too?
Yes, nails can't literally speak. But it can communicate through its language -- nail art.
Nail art used in photo is Tribal.