love and cough cannot be hidden
01
used to imply that attempting to conceal feelings of love or affection is often unsuccessful, as they have a tendency to become apparent to others, just like the physical reflex of coughing
ことわざ
例
Even though Sarah tried to conceal her feelings, her constant blushing and nervous giggling around John made it obvious. It just goes to show that love and cough cannot be hidden.
