HeartHave one's heart in one's mouth ........to feel strongly emotional about someone or something
Heart in my mouth when I heard the national anthem.
Out of heart..........discouraged (в унынии, в подавленном настроении) She was out of heart after her failure at final exams
Take heart....(мужаться, не унывать; воспрянуть духом) When we had troubles, Grandpa said, "Take heart, my children."
Have one's heart on one's sleeve.(выставлять свои чувства на показ; душа нараспашку). To display one's feelings openly and habitually, rather than keep them private. "John always has his heart on his sleeve so that everyone knows how he feels".
Hearts and flowers.........излишняя сентиментальность (maudlin sentimentality)
The play is a period piece, full of innocence abused and hearts and flowers.