I have the silliest "negotiation" style. I do my research on the person and the company.

If I like the leader and the company, when it comes to pay I just say to them: "I'd love working with you and I know you'll give me the best you can".

It worked out for me as I'm incredibly happy with my role.

That being said, the data is there, and if I had to do it again, I'd negotiate.