Somebody’s heart leaps
Definition 1 of 1
Pro Tip 1/3Positive Surprises
Use when describing a reaction to something unexpectedly joyful or exciting. 
His heart leaped when he found the lost wedding ring.
Pro Tip 2/3Not Literal
It's a metaphorical expression; it doesn't mean the heart actually jumps. 
Her heart leaped, not with fear, but because she had won the prize.
Pro Tip 3/3Emotionally Charged
Conveys a strong emotional response, often used in narrative to show character excitement. 
Every time he heard her voice, his heart leaped with anticipation.