Behavior Change Communication (BCC) is an interactive process using communication channels to encourage positive behaviors. It defines the behaviors to influence, uses frameworks to understand stages of change, and develops strategies using multiple channels. Effective messages are clear, benefit-focused, and repeated to reach people emotionally and rationally. Examples show using BCC to increase school enrollment by discouraging child labor and promote family planning by addressing discrimination. Challenges in Pakistani society include religious, cultural, international, and interest group influences.