What does the other side offer? If you want something from the other side, you better have something to offer which the other side wants:
"Give me a million USD, and I will smile!" - "No."
"Give me a million USD, and I will smile!" - "No. That's unreasonable, I'll give you 100,000, and you'll dance each time you see me.".
"Make it 300,000,and I'll fake that I like you." ...etc
Negotiating goes both ways.
What does the other side offer? If you want something from the other side, you better have something to offer which the other side wants:
"Give me a million USD, and I will smile!" - "No."
"Give me a million USD, and I will smile!" - "No."
"Give me a million USD, and I will smile!" - "No."
"Give me a million USD, and I will smile!" - "No."