Reality is there are absolutely no hard and fast rules at all.
It will depend partly on you and partly on the lesbian in question. Heck even some trans people don't accept other trans people as valid. I'm sure there may even be some on here who might secretly want to question me!

At the same time Alison and I have always been made very welcome at Lesbian clubs and venues, even a few which were theoretically known for their dislike of trans women, but then we were both ultra long term postop, looked "right", and were very obviously a couple, so not seen as in any way predatory, and (therefore?) welcomed with open arms. Oh and Alison not only wore a skirt and had a bag with her - but she was wearing an ultra mini skirt too, which alongside my jeans tee shirt and leather jacket just made us a normal pair, and got her much appreciation.
I have even enjoyed a very cordial evening with Germain Greer herself, who despite her reported public pronouncements I found to be very warm and friendly. I must confess though that the Female Eunuch was genuinely one of my formative pieces of adolescent reading which may have helped my cause.
So go figure.

Like I say it depends on many imponderables...
I honestly think that it is impossible and maybe even foolish to generalise about this. All I can say is Good Luck and have fun.