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liven up

liven up

 
See:
liven
part of speech: phrase
definition 1: to make (someone or something) more lively, exciting, or energetic.
He livened up is lecture with a few good jokes.Some great dance music livened up the party.
definition 2: to become more lively, energized, or excited.
She livened up when her boyfriend finally arrived.The party got off to a slow start, but it livened up eventually.