Firstly she is not a ladyboy
She is a female with a birth error.
Interact with her as you would with any other female
don't mention her cock first
if she wants to tell you she will
Read my guide
http://forum.transladyboy.com/showthread.php?t=10342
Chill out and have fun.
No pressure but I expect a PM from you in nine months time
telling me you both just bought a home, got engaged and are planning to get married next year.
{Like I said, we have the same drives and hopes and wishes as all the othen women in the world}