Use "tittering" in a sentence

1. Synonyms for Chortling include laughter, cachinnation, chuckling, giggling, guffawing, laughing, tittering, howling, boff and boffo

2. 18 I hesitantly entered the aqua-blue filth-smeared corridors and headed through an impossible maze of hallways, passing unruly-facial-haired men tittering in soiled khakis and sipping tall boys.