Reply to my message.

Not exactly. It depends on the relationship between the person who sent you the message and you. If it's a boyfriend and girlfriend, it's a bit perfunctory. It's a bit perfunctory if you are good friends. If you are an ordinary friend, he is more polite to you. Most people who reply "Oh" have nothing to say now, so don't think too much.

I hope you can adopt it. Oh, thank you!