usage - 少し日本語を話します and 少し日本語を話せます - What's the difference?

What changes, in these phrases? The change is the し for the せ. A friend told me that the second one was better for saying I speak little japanese.

私は少し日本語を話します。

私は少し日本語を話せます。

Answer

私は少し日本語を話します。

I will speak a little Japanese. (starting now)

私は少し日本語を話せます。

I can speak a little Japanese. (the ability to speak)

On a side note, a quick grammar fix (leaving word order as is)

私は少し日本語が話せます。