I try to just be myself, a slightly filtered version though. I’m not a formal person and I am reasonably blunt but not rude.
I try to treat my prospects as my peers, realistically we are on the same level.
Years ago when I started I was overly professional and polite, but at that point I thought that the business owners or managers were somehow above me so I had to seem professional to be at their level. But now I think I am at their level and 99% of people are just people, they might have some sort of title but that doesn’t stop them from being normal. My experience may be different, I am based in a regional area and I have managed teams & a business before.
Now in saying this I don’t just go in cracking jokes like I am at the pub and saying controversial things.
hopefully that helps.