Time: ~12am EDT this morning
Frequency: every time you play the cutscene
World name: Hyperion
Character name: Chai Latte
NPC name: Alphinaud
Class/Level: doesn't matter, 50 anything
Party or solo: solo
In-game time: n/a
Area and coordinates: Northern Thanalan, outside Castrum Meridianum

Steps:
1. Be a female character.
2. Watch the cutscene before Castrum Meridianum opens up (sorry, don't remember the exact quest name.
3. When Alphinaud speaks about you, he'll refer to you in one screen as "him" in the beginning of the sentence (emphasis by me on the error):

We Scions know a different Chai, however. We know him as a dear friend who has endured untold hardship on our behalf--a true hero who has ever blazed a path for us to follow. And why do I tell you this? I tell you, friends, because it is time for us to blaze a path for her!