For me, its to get out of the house and enjoy life as myself.
I do find it personally validating and emotionally satisfying when I go out as a woman and I am accepted at face value, and treated as if the people I am dealing with either can't tell that I wasn't born female, or as if they at least fully accept that regardless of how I was born and raised, what I am now, at that moment, is a person who should be accepted as a valid female.
A while back I went to an LGBTQ nightclub for a dance. As I often do, I was on my own, with no particular plans to meet up with anyone else. While waiting for the dance to begin, I was called over to join a group of four other girls who all knew me, seated at a sidewalk table in front of the club. Three of them were GG lesbians. The fourth was an MtF trans-woman, who is far enough along on her own journey that it's seriously hard to imagine that she was ever perceived as male. From the first time I had met her, several months earlier, if she hadn't stated she was trans, I wouldn't have suspected at all that she wasn't a GG. Anyway, we were having a pretty open and frank discussion on several topics, and she happened to choose to show us a picture on her phone of what she had looked like prior to her transition. It was quite a change, and we all complemented her on how far she had come. I was not at all in the habit of letting any of Ceera's friends see anything about my male side, but in the spirit of the open conversation, I also shared my 'before' picture - though in my case, the pic was only a month or so old, just without any makeup or breast forms or my wig, and dressed fully male. They all asked how many years I had been on hormones, and they could hardly believe that I wasn't on hormones at all, and that I had accomplished my gender transformation entirely by cosmetics and voice training.
But then one of the GG's asked me a question that sort of stumped me. "What is it you like about being female?"
She got the same silent pause that most GG's would respond with if asked that question, or that a male would respond with if asked, "What do you like about being male?" After a moment I said, "It isn't so much 'what I like', as it is that I enjoy simply being free to be 'myself', and to enjoy all life has to offer. For most of my life I repressed my feminine side. It's been like 'she' was shut up in a small room and never got to go out and make friends or enjoy herself. Now, that side of me is as free as my male aspect, and can make friends and enjoy life like anyone else."
That sort of sums it up. My 'girl side' wants to enjoy life as much as my male side has been allowed to do. She has some catching up to do, and she's enjoying every chance she gets to do so. It doesn't matter if its social nightclubbing or taking the car in for a lube and oil. Just getting out and experiencing life 'first hand' is a pleasure in itself.