Chattered

My teeth chattered with cold.

Ah, I've chattered on too much, haven't I?

So engrossed was he with his occupation that he appeared to have forgotten our presence, for he chattered away to himself under his breath the whole time, keeping up a running fire of exclamations, groans, whistles, and little cries suggestive of encouragement and of hope.

Tom's teeth chattered.

They chattered.

Fyodor and Anna excitedly chattered about all the memories they created during their trip to Algeria.

They chattered excitedly about their upcoming vacation.