Agender people do not identify with any gender. They see themselves as being neither men nor women for all practical purposes.
Although they have no gender, they still have a
gender identity, which is agender, and a sex.
They tend to always prefer
gender neutral pronouns (often "they" and "them" but others prefer new ones like "xim" or "her") and also tend to take offence if referred to with gendered terms like "brother" or "wife". They might want to be called "neutrois" in place of "man" or "woman".
They may or may not have gender dsyphoria and wish to change their bodies.
Being agender does not entail any
particular look but they often do seem quite epicene.
They call themselves "agender" not "agendered" and are an example of non-binary transgender or genderqueer.
Instead of being "straight" or "gay" they tend to use terms like "androsexual", "gynosexual", "enbian" etc.