patter

(noun) plausible glib talk (especially useful to a salesperson). Synonyms: spiel, line of gab.

(noun) a quick succession of light rapid sounds. Examples: "The patter of mice." "The patter of tiny feet."

(verb) rain gently. Synonyms: sprinkle, spit, spatter, pitter-patter. Example: "It has only sprinkled, but the roads are slick."

(verb) make light, rapid and repeated sounds. Synonyms: pitter-patter. Example: "Gently pattering rain."