It means "I Speak Spanish."
Hablo español / castellano
no hablo ingles
"Hablo" means "I speak" in English.
"Hablo ingles" means "I speak English" in English.
"I don't speak Spanish" is "No hablo español."
No hablo español pero hablo alemán.
"Hablo con amigos" means "I talk with friends" in English.
Sólo / únicamente / solamente hablo francés
Yo hablo.
no hablo espanol
Hablo egipcio.
Hablo (I speak) and then the language. The way to say what language you speak is to know the nationalities. For women add an a and for men keep it the same. For example, Masculine: Hablo ingles (accent over the e) Feminine: Hablo inglesa (no accent).