Wear your heart on your sleeve
to make your feelings and emotions obvious rather than hiding them
Перевод - Выражать свои чувства открыто и честно
Дословный перевод - «носить сердце на рукаве»
It takes courage to wear your heart on your sleeve, which is why few people do it.
You’d never be good a poker. You always wear your heart on your sleeve.