let emotions show

let (one's) emotions show

To allow one's emotions to be on display to others; to let other people see how one is feeling (about something). He is normally a very composed, reserved fellow, but he'll let his emotions show if ever you say a disparaging remark about his sister. She held it together for the whole funeral, but she they started talking about her childhood with her father, she started to let her emotions show.
See also: emotion, let, show
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

let one's emotions show

to be emotional, especially where it is not appropriate. I'm sorry for the outburst. I didn't mean to let my emotions show. Please stop crying. You mustn't let your emotions show.
See also: emotion, let, show
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.
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