Juno

You arranged to meet a friend in a city centre bar, but they didn't show up. As it happened, there was a group of trans women meeting up in the bar. You got talking to one of them, Juno, not realising at first that she was trans! Juno found your mistake quite funny, not to say quite comforting (like most trans women she's had her struggles with acceptance) and soon you're getting on well.