Words similar to sniggering

Example sentences for: sniggering

How can you use “sniggering” in a sentence? Here are some example sentences to help you improve your vocabulary:

In the future, please research a story more before sniggering and laughing at a man in a scout uniform ...
Its laughs are as crude as the chuckles of "little boys sniggering over National Geographic " (Susan Wloszczyna, USA Today ). Others say its digs at ivory-tower credulousness and Dreyfuss' turn as a neurotic professor make it "too funny to ignore" (David Denby, New York ). (The trailer is available here.)
Even so, native English-speakers confronted with this manner of stuff will have trouble not sniggering in their saké and—horror of horrors—be asked to explain wherein lies the humour.
If you think this is amusing, think how much fun you could have with paraplegics or muscular dystrophy issues--much bigger universe, many more sniggering opportunities.
Which of us has not confidently used a word for years, and then found out (probably in public, to the sniggering of others) that it had another pronunciation altogether?