El hermano de Diego le puyó el hombro con un alfiler solo para fastidiarlo.Diego's brother pricked him in the shoulder with a needle just to mess with him.
Juan trataba de hacer caso omiso de los alumnos que siempre lo puyaban durante el recreo.Juan would try to ignore the students who always needled him during recess.
puyarse
Un verbo pronominal siempre usa un pronombre reflexivo. (p. ej. Te ves cansado.).