"Her"? Why are they even referred to as "women", when they're clearly not? They're just delusional men with dreams of becoming a female, so they go ahead and get all of that surgery crap, take female hormones medication, and then go out to walk outside and try to talk as "cute" and "girly" as they can be to not screw up. A shemale named "Carla" obviously had the original name of "Carlos" back before going shemale. 
TBH, I'd rather be friends with a gay guy (because with any guy I can already put walls up since I'm not into them) than a fucking stealthy transexual who uses the illusion of female beauty to make you think "they" are women. Disgusting as fuck.
uh some people really are a gender that their body isn't. for example, one of my best friends, J, was born with ambiguous genitalia, and they decided to go with the boy parts. he grew up always feeling like he was a girl and his body was wrong. it's really sad, actually. he acts like a girl and all, but hasn't really "come out" as being transgender or anything, so i'm still used to saying "he" and "him" since that's what i call him in public (he prefers for others to assume he's gay or metro or whatever). but when it's just our close group of friends, J is "Jaz" and we change the pronouns.
EDIT: so yeah, physically he is a male but he dresses in a feminine way, styles his hair girly, wears makeup, etc... he's a trap lololol. but he's not some pervert guy who just wants to trick guys and feel cute. he's taking testosterone suppressants because he really just wants his body to be how his mind is. he'll get surgery later in life probably.