godan verb (-ru), transitive verb
Used to describe someone else's observable desire for something. Unlike 欲しい, which expresses the speaker's own desire, 欲しがる is used for third-person subjects or to describe apparent wants.
See also: 欲しい
子供がおもちゃを欲しがっている。
The child wants a toy.
彼はいつも新しいスマホを欲しがる。
He always wants a new smartphone.