I love how friendly people in Argentina are to noobs trying to learn Spanish.

If they notice that you "habla un poco" they speak more slowly, use individual English words as needed if you don't understand, but don't just give up and use English for the whole conversation.

I wish people in more countries did this.

More people need to make the effort to speak to folks in their native language, imo.

Even if you sound awful, in my experience, they appreciate the effort. Plus, it's a sign of respect.