They were chattering (discursively on a variety of topics) over their needlework.

她们一边做针线活一边闲扯个不停。

《新英汉大辞典》

Bahamian Prime Minister Perry Christie spoke discursively and at some length.

FORBES: Baha Mar: The Biggest Thing in the Bahamas

The highlight of the sale was surely the memoir he wrote about his family, in which he discursively and passionately discusses his daughter, servants, emotions, and experiences.

FORBES: Twain, Bront?, Whitman: Collecting Personality or Personality Collecting?