Unfortunately, this is why English can be difficult to learn because the words mean the same. If anything, I think the major difference, is how it is written in books/literature. In books that I have read, speak is used more than talk. However, speak and talk have the same meaning.

speak é usado quando vc fala alguma coisa, tipo "eu falo ingles" i speak english, e talk pode ser traduzido como conversar, tem q haver o dialogo, "eu converso com vc" i talk with you

Advice: You should be here to learn English. Your English is always on display to others. Make it the best English you can produce! Otherwise, everyone will think you are either a beginner or a lazy student or both. And while we want to help beginners, we don't want to help lazy students who don't care about writing good English. So please, write your English as correctly as possible. Why do I say this? Because in one year, you also didn't learn to capitalize the names of countries (Brazil), the names of languages (English), or the first word at the beginning of sentences (The). You also didn't learn that "Thank!" has no meaning in English. The expression is "Thanks!" If you could not learn these simple things in one year, then it may be difficult to teach you the difference between "talk" and "speak", which is much more difficult to understand, but I will try. ------------------------------ You talk TO SOMEONE, hopefully using words known to both of you so your conversation is intelligible (understandable). Are you talking to me? They are talking to each other. He is talking to his wife. What do you want to talk about (to me)? You can even talk to yourself! But you should be talking to someone, even if you are just talking to your dog or your dead aunt. He is talking on the phone (to the person at the other end of the phone line). Speaking is simply making noise with your mouth. Hopefully, this noise sounds like words we can recognize but it is not an essential requirement. We can speak nonsense, but we are nevertheless speaking. No one will speak to him. He is not speaking to anyone because he is angry at the world. Speak into the microphone, please. Why didn't you offer some example sentences and ask us why speak/talk wouldn't work interchangeably in them? ------------------------------ See how much effort I put into my answer for you? So please capitalize the names of languages and countries in the future.

-speak . With yourself ... you can speak and you're single or sing in English, you're alone - talk , there must be a second party .