Head hair may change slightly in texture, curl, and color. Dancers would typically curl their hair before each competition. The top and bottom lips curl inward and grip the forward tongue. The tail will usually curl up over the back and sit flat. Pubic hair also varies in its colour, texture, and amount of curl. Another example is the dumbbell curl at the elbow. The patient should curl their shoulder and legs and arch out their lower back. There are a range of theories pertaining to the curl patterns of hair. The tail is carried with a slight curl. Being jointed, the arms can curl up. A pageboy flip has the bottom reversed to curl outward. However, when performing this same experiment in the dark, the tendril would not curl. The end curl protrudes slightly beyond the flange. She was the first woman surfer to surf in the Rip Curl Cup in 2012. A rubber compound is put inside the curl.