Act like' is an expression used to describe the action of imitating or copying someone or something. The crossword solutions for this term are 'PRETEND, ' 'MIRROR, ' 'APE, ' 'MIMIC, ' 'EMULATE, ' 'PORTRAY, ' and 'DUPLICATE.' Pretending involves creating a false reality, while mirroring is reflecting the behavior of another. Apeing is copying someone's actions in a mocking way, while mimicking is imitating someone's speech or mannerisms. Emulating is striving to be like someone else, while portraying is acting out a character or role. Duplicating is making an exact copy of something.