Give your therapist access to the real you. This means being totally honest and vulnerable.
Rip down the walls you’ve built to protect yourself. The only way to get honest, useful feedback is to reveal your truest thoughts and feelings.
Give your therapist feedback. Tell him/her about how you experience the session, what’s helpful/unhelpful and your reactions to both the therapist and the therapy in general.
Providing this feedback enables your therapist to better meet your needs.
Think critically about your sessions, and feel free to question your therapist’s instructions, skills, and rationale.
Periodically ask your therapist to assess your progress with you (if your treatment is longer-term).
You can maximize the benefit you get from your therapy by devoting time to your growth between sessions, as well.