What do you need your stakeholders to do in order to move your project forward?
Say they like it?
React to it?
These aren’t helpful to you. These aren’t commitments.
What is the specific commitment you need your stakeholder to make in order to move your project forward?
Assign your project a budget.
Schedule a “next steps” meeting.
Respond with insightful feedback.
These are commitments. Actions that prove your stakeholders have bought into your product idea.
Step one to getting stakeholder buy-in is getting clear on what that buy-in actually looks like.