From Chapter 2:
But the apothecaries were the most usual salesmen, and their shops and the ordinaries were the customary day meeting-places for the more fashionable smokers. The taverns and inns, however, were also filled with smoke, and taverns were frequented by men of all social grades. Dekker speaks of the gallant leaving the tavern at night when "the spirit of wine and tobacco walkes" in his train. On the occasion of the accession of James I, 1603, when London was given up to rejoicing and revelry, we are told that "tobacconists [i.e. smokers] filled up whole Tavernes."

From Chapter 10:
Notwithstanding that the number of smokers had so largely increased, and was continually increasing, smoking was regarded socially as something of a vice—to be practised in inconvenient places and not too publicly.

There were still plenty of active opponents and denouncers of tobacco. One of the most distinguished was the great Duke of Wellington, who abominated smoking, and was annoyed by the increase of cigar-smoking among officers of the army. In the early 'forties he issued a General Order (No. 577) which contained a paragraph that would have delighted the heart of King James I. It ran thus: "The Commander-in-Chief has been informed, that the practice of smoking, by the use of pipes, cigars, or cheroots, has become prevalent among the Officers of the Army, which is not only in itself a species of intoxication occasioned by the fumes of tobacco, but, undoubtedly, occasions drinking and tippling by those who acquire the habit; and he intreats the Officers commanding Regiments to prevent smoking in the Mess Rooms of their several Regiments, and in the adjoining apartments, and to discourage the practice among the Officers of Junior Rank in their Regiments."