Cameron suggests, "It is comforting to be told that nobody needs to 'feel awful': that there are no real conflicts, only misunderstandings. ... But the research evidence does not support the claims made by Tannen and others about the nature, the causes, and the prevalence of male-female miscommunication."[22] She argues that social differences between men's and women's roles are not clearly reflected in language use. One additional example is a study she has done on call center operators in the UK, where these operators are trained to be scripted in what they say and to perform the necessary 'emotional labor' (smiling, expressive intonation, showing rapport/empathy and giving minimal responses) for their customer-callers.