Small-talk

He took Miss Lynes to supper; he outshone himself in vacuitous small-talk during the whole time that the meal lasted; he held undisputed possession of her during that hour especially dear to flirtation, between the time when supper ended and the departure of the guests.

Source: wiktionary

Mr Casaubon seemed even unconscious that trivialities existed, and never handed round that small-talk of heavy men which is as acceptable as stale bride-cake brought forth with an odour of cupboard.

Source: wiktionary

Agreement even seemed to cheer him up, and from there our discussion began to take on a more relaxed and customary shape and to gravitate towards our usual oxymorous small-talk on large topics.

Source: wiktionary