Salesmanish

Peter spoke lower still though there was no one in sight except an inconspicuous salesmanish-looking passenger doing his constitutional round the deck.

How do you do, sir? (very hearty, "salesmanish" approach)

Not through charm (though his arsenal included a salesmanish version of that) and not through its antithesis, coercion (though browbeating was an old specialty of his), but through a counterbalanced combination of the two that called to mind an expert dog trainer, with the sit and stay commands swapped for shut up and pay.

Minutes later, he realized that it looked too formal, and too salesmanish.