expression, suru verb (irregular)
do as one likes; have one's way
Used when someone acts freely according to their own wishes, often with a nuance of leaving things to someone's discretion or allowing them to do whatever they want.
今日の予定は君の好きにしていいよ。
You can decide today's plans as you like.
彼はいつも自分の好きにする。
He always does as he pleases.