1To show or appear glad; to seem pleased. Often used to describe someone else's visible happiness.
彼女は小さなプレゼントにも嬉しがる。
She gets happy even with small presents.
子どもは褒められるとすぐに嬉しがることが多い。
Children often immediately show happiness when praised.
あまり嬉しがらないで、落ち着いて話してごらん。
Don't act too pleased; try speaking calmly.
彼は合格の知らせに嬉しがって家族に電話した。
He was so happy to hear about his acceptance that he called his family.