He, him, his, and himself are sometimes used for referring to a person of either sex, for example in writing about something that may apply to a man or to a woman. However, many people think that this use suggests that women are not included or that men are more important than women. To avoid causing offence, you can use expressions such as he or she, he/she, s/he, him/her, or him/herself in writing. In conversation, many people say they, them, their, and themselves to refer to a person without mentioning whether the person is male or female.