The most common thing is to send a bunch of carnations, which is very warm. I often send this to my mother, of course, on holidays and on his birthday, but to be honest, if I really love my mother, I won't send anything. When I saw my mother give him a hug, I told my mother that I was doing well! Then say, "Mom, I love you!" In fact, parents don't expect anything like gifts, just hope that we can live a better life.