From Chapter 2:
The properly accomplished gallant not only professed to be curiously learned in pipes and tobacco, but his knowledge of prices and their fluctuations, of the apothecaries' and other shops where the herb was sold, and of the latest and most fashionable ways of inhaling and exhaling the smoke, was, like Mr. Weller's knowledge of London, "extensive and peculiar." It was knowledge of this kind that gained for a gallant reputation and respect by no means to be acquired by mere scholarship and learning.

From Chapter 7:
At another inn a country squire is discovered smoking his pipe by the door and the parson promptly joins him. Again, he smokes before he goes to bed, and before he breakfasts the next morning; and when he goes into the inn garden with the host who is willing to trust him, both host and parson light their pipes before beginning to gossip. Farther on, when the hospitable Mr. Wilson takes the weary wayfarers in, Parson Adams loses no time in filling himself with ale, as Fielding puts it, and lighting his pipe. The menfolk—Wilson, Adams and Joseph—have to spend the night seated round the fire, but apparently Adams is the only one who seeks the solace of tobacco. It is significant that Wilson, in telling the story of his dissipated early life, classes smoking with "singing, holloaing, wrangling, drinking, toasting," and other diversions of "jolly companions."