Discusses how to choose physical activities with psychosocial objectives in mind in order to create avenues for practice and support for new behaviors, highlighting seven psychosocial dimensions of change (socialibility, spontaneity, self-motivation, aggressiveness, competitiveness, mental focus, and adventurousness). The paper examines the potential of conscious activity commitments for personal change based on these psychosocial dimensions (e.g., developing social skills and coping with stress). (SM)