It takes time to build trust. Just allow the relationship to unfold in a natural way. It is like a rose, it only harms the rose if you try to pry it open.
Just be natural - be yourself. That is the one great thing about therapy - it is the one place where you are free to just BE. Don't try to be who you want T to see. Don't try to be who you think T wants to see. Just be who you are. That is what T's actually admire the most! They spend a ton of time trying to get people to drop the mask and get real.
Be honest. If you don't know an answer to a question, say "I don't know." T's give tons of questions that they know we don't have answers to. They do it to get us to start thinking about things. If things bother you, be sure to tell T about them. Don't hold onto things that come up between you and your T. Address the situations with honesty and respect.
And give yourself some space and time to learn how to do therapy. There is no other relationship like it in the world. But it can be the best medicine ever!