How do you reply to hablas espanol?

Answer 1

¿Hablas español? = Do you speak Spanish.

You could reply yes or no:

yes, I speak Spanish: Sí, hablo español.

No, I don't speak Spanish: No, no hablo español.

Answer 2

"Hablas espanyol" as a question means: "Do you speak Spanish?" -- Considering that you are asking what the proper response is to the question, it is strongly likely that you do not speak Spanish. As a result, you should answer: "No." If you want to be more polite, you can say, "No, no hablo espanyol." which means "No, I do not speak Spanish."

Answer 3

"hablamos pronto" means we will speak soon. You might respend with "sí, nos hablamos", meaning yes, we will speak with each other.