Pale Kreyòl
Here's a breakdown:
* Pale - means "to speak"
* Kreyòl - is the Haitian Creole word for Creole
You can also say:
* Pale Ayisyen (meaning "speak Haitian")
* Pale lang Kreyòl (meaning "speak the Creole language")
These are all valid ways to express "speak Creole" in Haitian Creole.