I think the first thing to do is ทำให้ลูกค้าพึงพอใจ และอยากที่จะกลับมาอีก
I think the first thing to do is make a customer satisfied and eager to return.
I think the first thing to do is to make customer satisfaction. And want to come back again.
I think the first thing to do is make customers satisfied and want to come back again.