People who pawn goods at a pawnshop hock them. That’s why such places are sometimes called “hock shops.”
Vendors who proclaim aloud the availability of their goods on the street hawk them. Such people are called “hawkers.”
The latter word is used metaphorically of people or businesses aggressively promoting anything for sale. They are not “hocking their wares” (or worse, “hocking their wears”), but “hawking their wares.”
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