He was always wanting us to buy things.

On the shallowest pretenses he would inveigle us into shirt stores, boot stores, tailor shops, glove shops--anywhere under the broad sweep of the heavens that there seemed a chance of our buying anything.
Anyone could have guessed that the shopkeepers paid him a percentage on the sales, but in our blessed innocence we didn't until this feature of his conduct grew unbearably prominent.

One day Dan happened to mention that he thought of buying three or four silk dress patterns for presents.
Ferguson's hungry eye was upon him in an instant.

In the course of twenty minutes the carriage stopped.
"What's this ?" "Zis is ze finest silk magazin in Paris--ze most celebrate." "What did you come here for?
We told you to take us to the palace of the Louvre." "I suppose ze gentleman say he wish to buy some silk." "You are not required to 'suppose' things for the party, Ferguson.

We do not wish to tax your energies too much.