At a local project I made a few on the playground with the magical M9 + 50 mm Summilux combo.
A boy showing me his scary, karate face! :) M9 + 50 mm Lux at ISO 160, F1.4
Beautiful child. M9 + 50 mm Lux at ISO 160, F1.4
My favorite, - a HCB moment. Look at the two fighting for the tap in the front, some running still towards the tap and the dude on the side looking at hands to see if he really needs to was his hands?