"Penser" in french has often (but not always) more to do with remembering things than actually gaining a deeper understanding. "Pense à acheter du lait" would be "Don't forget to buy some milk".
I think "RÉFLÉCHISSONS" might be a bit closer to what the english THINK evokes for me. But then again I'm not a native english speaker so maybe I read a little too much into this.