A tout is any person who solicits business or employment in a persistent and annoying manner (generally equivalent to a solicitor or barker in American English, or a spruiker in Australian English).
Also, it means, to advertise, talk about, or praise something or someone repeatedly, especially as a way of encouraging people to like, accept, or buy something
>A person who frequents heavily touristed areas and presents himself as a tour guide (particularly towards those who do not speak the local language) but operates on behalf of local bars, restaurant, or hotels, being paid to direct tourists towards certain establishments.
>In London, the term “taxi touts” refers to a kind of illegal taxicab operation which involves taxi drivers (or their operator) attracting potential passengers by illegal means—for instance, calling out travellers, or fetching them and their luggage, while parked in an area where taxi drivers must wait in their vehicle.
>Ticket tout is a British term for a scalper, someone who engages in ticket resale for more than the face value of the ticket.
Example in sentence
>The minister has been touting these ideas for some time.
>He is being widely touted as the next leader of the party.
>A local car dealership was touting its services/wares on the radio.