Your message is important to you, and to get others to believe in it, you can shape it in many ways. But don’t forget that what you say first your “pre-suasive” tactics strongly influences what you say next, and what your audience retains.

Here are few ways to get people to do what you want :

• Be extremely charming, confident and likeable. People will bend to your will more if they like you. Being well dressed also doesn’t hurt.
• Mirror the person’s behaviour to make the person feel more at ease and they tryst you more.
• At the beginning of the conversation, make the person say “yes”, nod or voice agreement to something you say. This will make the person subconsciously more receptive to what you say afterwards.
• Make the person feel respected and important. Everyone loves to feel special. No matter how powerful you are.
• Push for a feeling rather than something tangible. Human beings are emotional creatures.
• Tap into the person’s imagination.
• Do a big favour for the other person so he or she feels obligated to do something for you. People like to appear fair or be the bigger person, tap into that.
• Challenge a person to do something as opposed to telling them to do something. Give the other person the illusion of free will.
• Claim that you have the person’s best interest in mind (nobody hates a do-gooder).

Reference : https://img.wonderhowto.com/img/50/54/63472758780806/0/9-ways-get-people-do-what-you-want.w1456.jpg