HIGH SCHOOL MUSICAL star Ashley Tisdale is determined not to be sucked into the Hollywood partygirl lifestyle, and wants to stay teetotal for as long as possible. Unlike many of her peers, 22-year-old Tisdale shuns the bright lights of Los Angeles and prefers to spend her spare time on more wholesome pursuits. She tells the New York Daily News, "Some comments on the Internet sites are, 'She doesn't act her age. She acts so young.' I definitely am different from any 22-year-old, but is it because I'm not drinking and I'm not smoking like a party animal? I know how to have fun doing just normal things."