Questions about example sentences with, and the definition and usage of "Saying"

A:
não dizendo o que você quer dizer

A: When you voice your thoughts or something you're reading
☞ '' He read it out loud''
☞ '' He's saying his thoughts out loud''

A: When you're saying something, a lot of the time it's just putting something out there. Telling something is when you're specifically talking to a person or a bunch of people. Ex: "I always say that", "I can say a lot of words"
"I tell you every day" "Im going to tell him"

A: What are you saying? I was saying something before he interrupted. Saying that I'm stupid is mean. "Qué será será" is a popular saying. What do you mean by saying that? By saying hello, he made me smile.

A:

“What are you doing?“, he said, sitting down next to her as he did so.

As he sat down in the chair next to her he spoke, saying, “what are you doing?“

A:

You're welcome .
"I'm saying/talking about...." - depends on the context.

You cannot say "I'm saying about". Grammatically wrong.

"I'm talking about..." - gives the person you are speaking to an idea about the subject of your conversation.

"I'm saying...." - gives the person you're speaking to more detailed information about what you are saying.

For example: "I'm talking about the Game of Thrones princess with blonde hair".

"I'm saying that the Game of Thrones princess will sit on the Iron Throne."

A: I say it's good. But, try to work on putting on quotations around the sentence you want people to help you with.