One of the core principles of MI is to elicit the client's own motivation for change, rather than imposing it from the outside. This means that you need to ask open-ended questions, listen reflectively, affirm the client's strengths and values, and summarize the client's key points. By doing so, you can help the client explore their reasons for change, their goals and aspirations, their barriers and challenges, and their confidence and commitment. You can also use the technique of evoking change talk, which is any statement that indicates the client's desire, ability, reason, or need for change. Change talk can increase the client's motivation and readiness for change, while sustain talk, which is any statement that indicates the client's preference for the status quo, can decrease it. You can elicit change talk by using the OARS skills (open-ended questions, affirmations, reflections, and summaries) and by using the DARN-CAT framework (desire, ability, reason, need, commitment, activation, and taking steps).