Some one just sent that to me in a text message and I don't understand.
What does "como crees" mean?
how do you think
Depending on context, it could mean: Do not be silly!
- ¿Es tu novio?
- ¡Cómo crees!, sólo somos amigos.
What do you think?
Less likely, but it could also be "as you believe" or "like you believe" as the como has no interrogative accent mark on it.
"¿Cómo crees que lo hago?"
"How do you think I do it?"
como = how
crees = think, believe
A simple dictionary from spanishdict gives this translation