I am expecting that I will get a call from my interviewer (who will be my future manager) that they want to hire me. I had two meetings there (company B) but just want to get information on how this company solves the issue. I was not interested since I got the verbal acceptance from company A which pays more and is bigger and better.
I would like to decline their offer of company B in a polite way, but I am waiting for the contract from the better company A. But I
How can I say in a polite way: " Thanks for the offer. I am interested, but I got another offer that I want to take. But we can still be friends, maybe I need your research institute someday later, or we'll see us at conferences."
How do I handle this right?