How do you speak Patois?

Yes.

either... usually speak with

Messengers.

Arabic is mainly spoken in the Middle East, and there are different dialects. Egyptian Arabic is different, but not much, from Arabic spoken in Saudi Arabia. Even in mostly Arabic speaking counties...

There is no difference exactly, but speaking to is more to do with YOU talking. Speaking with implies a group conversation where you are speaking AND listening. I think conversing is a better word...