When I bought my first Stihl [moving away from my old Echo], the dealer asked me a number of questions, conversationally. I think he was checking out my experience, since he'd never seen me before, plus my needs. We discussed it all and decided on the saw right for me [I had some idea already when I went in, he went over the options in my power/use needs]. He went over the saw with me completely, filled the oil/gas, showed me the chain-tightening stuff and the safety features. Only took a few minutes. He fired it up, made sure the carb was adjusted right, ran it thru a log he kept out back. Asked me if I had any more questions.
Next time I went in there for a new saw, by which time he knew me since I'd been going in there for various things since the first purchase, he checked out the saw but there wasn't anything to show me about operating. By that time, he knew I knew what I wanted and was educated and experienced in using the saws. However, had I needed more of his time, I know he'd've given it to me. Doesn't hurt that he likes to lean against the counter and visit.