Cold hands, warm heart

Cultural  

1. Cold hands indicate affection, possibly because the emotions affect blood circulation.

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cold hands, warm heart Idioms  

1. Not showing one's feelings does not signify lack of feeling. For example, Dan rarely sends flowers or anything, but he's a case of cold hands, warm heart. Why a literally cold hand should indicate sympathy or affection is not really clear, but this expression has been so used since about 1900, and the Germans have an identical saying (kalte Hand, warmes Herz).

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Example Sentences

“Cold hands, warm heart,” the doctor replies.

From The Guardian

The adage “Cold hands, warm heart” might describe me accurately if it also included “cold feet.”

From New York Times