Thought wise, I dart around inside my own mind more. That is to say I change thoughts quickly. It has lead me to appear more ditzy, but I am clearly of the same intellectual capacity of before. I find that quite interesting.
Emotionally, I feel more connected to people and driven to stay in contact. This makes the fact that my parents and brother have cut me off and my sister hardly talks to me hurt all the more. :-/ I talk a lot more with people in general. I am more open about things although that could be social, as, post transition everyone who knew me from before, now knows my biggest secret, so maybe that leads me to be more open. I was pretty open before though too. I was a very emotional person before, but I have still noticed a slight reduction in the blockage of emotions that T causes. I am super super emotional now.
I smile a billion percent more, like, all the time. Literally, 100% of the time. people comment on it. Just today a guy a bar asked me how I could be so happy all the time and said he wanted whatever I was taking. I doubt he actually would though if he knew what it was! :-)