how to tell I don't have kids, without telling you I don't have kids...
unless the child is really hurt, I would just laugh with/at the them... I do it all the time when my great neices or nephews fall over.
they fall of their bike... check for injuries... say "What you crying for?.... then laugh
playing football... they lose a 50/50 with another kid... if they get up and start to cry... say "stop being a *****" then laugh...
once I lightly banged my neices head on the car door frame as I was putting her in the babyseat, she started crying.. I started laughing... then she started laughing with me..
she always used to hold her head in her hands when I put her a car afterwards...
This is the reason why I'm not allowed to don't take them to the park by myself.. lol