To play Toca Hair Salon 3, simply select a character from the menu and use the available tools to style their hair. Use scissors and clippers to trim hair, curling irons to add curls or waves, and a variety of styling products to complete the look. You can also experiment with different colors and accessories to personalize the hairstyle. Drag and drop the tools onto the character's hair to use them. Once you are finished, take a picture of the completed hairstyle to save or share with friends. The app is easy to use and encourages creativity and experimentation, making it a fun and engaging experience for children.