Article in English: Try a bold color like red, or a color like black that will look silly if it's chipped because you're biting your nails. If you don't like color, polish them and apply some shine and growth promoter or petroleum jelly. It's harder to bite nails that are looking great. This is another great way to keep your nails covered. Get your nails professionally manicured, which involves getting acrylics glued to your nails. They last for ages and when you get them taken off, you will have your real natural nails underneath. If you're really determined, you can get a particularly expensive manicure with artificial nails. This will make you feel even worse about biting your nails and ruining your pricey look. Keep gloves in your back pocket and wear them when you want to bite. This will motivate you even more if it's the middle of summer and you look ridiculous wearing gloves. If you're writing or doing something else that is particularly tough to do with gloves, you will be even more motivated to stop biting your nails. Remind yourself that if you didn't have a nail-biting problem, that you wouldn't need to wear the gloves.

Summary in Vietnamese:
Sơn móng tay. Gắn móng giả. Đeo găng tay.