Actress Olivia Munn has dished out some sex and seduction pointers in the new issue of Men's Health magazine. "If she's anything like me, sex isn't just a priority, but something she has to have," the New York Post quoted her as saying.But the “Daily Show" star admits she's made mistakes. "The most embarrassing text I ever sent? When I sexted a boy too early in the relationship. Silence in return: cringe-worthy. Good rule of thumb? Go there for real before you text about it," she added.