I won't even say which site I met my girl on, it's and old pre smart phone based one. It is really just a scam to get you to pay by sending out fake profiles. She said the guys that contacted her were 99% assholes and freaks. We have been together for a year and it is working well for both of us.
So, pretty much the same as approaching any other girls or any other HUMAN BEINGS. I feel like cis women and trans women tend to be seen more as things we need to date and fuck and less as people we should connect with. This video is good and informative, and I'd also like people to remember to be nice with each other.