<prompt> Human: I got a call yesterday saying that this company is offering me a job starting at xx,xxx. She asked if that was okay. In a moment of excitement I went on to say something like Im very excited to hear from you! And I may have said it was okay. Did I miss my chance to negotiate salary, or would it be okay to negotiate once I get the formal offer letteremail?Side question, does it matter if I negotiate over the phone, via email, or in person?Edit: Made a case for a small increase and they accepted, thanks for all of the advice!  <response>: I would negotiate before you get an offer letter. 