It took a while for me to switch pronouns when my colleague transitioned. Up until that point I had been "hey man... man, listen... y'alright dude..." etc. (literally had no idea what they were going through until the day before)
I simply did not have that same banter vocabulary for girls, and I just had to learn to say "hey... listen... y'alright..."
The dynamic changed a bit for a week, but then it bounced back fine. I just wince at all the gender-affirming vernacular in my casual speech that must have burned them every time I said it