Rapport building is important at conscious and unconscious level: This thereupatic alliance enable to break the resistance and to take the patinent in confidence when there was difficulty initially.
Some ways:
1)mirroring the posture
2)matching their posture
The therapist should be vigiliant about his/her non verbal gestures, the distance he is having with the patient, appropriate use of micro expressions, alignment of physiology, maintaining the eye contact, maintance of tone and pitch of the voice .
These indicators are important to reinforce unconscious impulses as the motive is always provided by the unconscious.