Gender expression

Gender expression is how someone chooses to outwardly express their gender in public. Gender expression is external manifestations of gender, while gender identity is internal. Expression includes a person's name, pronouns, body characteristics, voice, behavior, and aesthetic choices such as hair, clothing, and cosmetics. Various forms of expression are regarded as "masculine" or "feminine" within different cultures. Some transgender people seek to align their gender expression with their gender identity, rather than the cues associated with the sex they were assigned at birth.

Titles
The title one wishes to be referred to as is a part of one's gender expression. Common formal titles include "miss", "Mrs.", "Mr.", "Ms.", "sir", and "ma'am". As all of these titles hold gendered connotations, several neutral titles have been proposed in addition to professional neutral titles (such as "doctor" or "professor").

The title "Pn.", short for "person", was proposed as early as 1970, being published in Everywoman.

The title "Mx.", pronounced "mix" or "mux", was proposed as early as 1982, for use by individuals who did not want to disclose their gender through their title due to sexism. In 2013, "Mx." was approved for use on council forms in Sussex, England; by 2015 the title was widely accepted by government agencies, charities, and public services in the UK. It was added to the Merriam-Webster Unabridged Dictionary in 2016.