How do we do Stakeholder Engagement in Stakeholder Analysis?

Based on stakeholder identification and stakeholder analysis, Project Manager (PM) will know what are the interest levels and decision making capability and specific requirements of stakeholders. which stakeholder will approve a design or a change or a specific decision in the project. After a stakeholder analysis, PM will arrive at:

Are they going to be helpful or are they going to hamper the work?

Who are the allies, who are oblivious to the project and who are the adversaries?

What is the current level of engagement of stakeholder, where should the stakeholder be?

What is the level of interest/power/influence on the project?

Which stakeholder gets involved at what stage?

What is the purpose – consult/inform, approve, perform various activities?

Who needs to know about the changes happening in the project?