I have been a salesman for over 40 years. Every person is different and one adapts to that person whether being firm, sympathetic, aggressive, motivational, seductive, flirtatious, in fact every conceivable emotion you need to secure the sale. As a Company Director (semi-retired) the emotions have to be stronger to keep the customers and staff on song.
Was an extra last February for an American production at Dover castle. Great fun.