Federico stepped foward and crackled his knuckles before moving his fingers fast and smiling to the unkown figures he said
"Bueno, ¿que tenemos aqui, me vais a fastidiar el primer dia de clase? (well, what do we have here? are you going to mess to my first day of class?)

He then raised his left hand and caused a hole in space that instantly sucked a ball of water that was flying towards him, making it disappear
"interesante..." (interesting)