Huckster

Huckster is someone who uses clever tricks and words to get people to buy things they don't need or to agree with something they don't believe in. Usually, hucksters say things that sound too good to be true and use a lot of exciting words to make you think that what they are selling is the best thing ever. They usually talk fast and in an excited way, so it can be hard to tell that they are trying to trick you.