Nail art techniques involve various methods to decorate and enhance the appearance of nails. Common techniques include freehand painting, where designs are painted directly onto the nail, and stamping, which uses a metal plate to transfer patterns. Other popular methods are nail wraps, which are adhesive designs applied to the nail, and dotting, where small dots are created using a tool for intricate designs. Another technique is ombre, which blends two or more colors for a gradient effect. Marbling involves swirling different nail polishes together for a unique look. Additionally, 3D embellishments like gems and stickers can add texture and dimension to nail art.