@GeoffWozniak I am biased but something that made me think about this was when a friend pointed out that almost nobody ever tests their chromosomes and yet doesn't have much doubt about their gender.
Of course that leaves the retreat to primary sex characteristics equal gender as a knee jerk but it can get people thinking and start introducing the separation between our biological models of sex and our psychosocial concepts of gender.
Consider this a friendly, local pub. Make yourself at home, bring your friends, have a good time! Meet new people, have a laugh, enjoy the ambience, and the Oxford commas.