differentiate

mastery
UK /dɪf.əˈɹɛn.ʃi.eɪt/ US /ˌdɪf.əˈɹɛn.ʃi.eɪt/verbnoun

card 1 of 10 · synonym

Which word is closest in meaning to 'differentiate' in this sentence?

How do you differentiate a fake smile from a genuine one?