I have a boy and a girl. if its a pain issue, I try to get them to walk it off and get back into whatever they were doing. like my daughter crashed her bike on the track. she cried, I comforted, and she got back on the bike. same with my son when he was pushed down while running track. got him back out there.

for other issues like fear or just not getting their way, I try getting them to explain why their crying and give them other options to expression that emotion, like talking through it. or just find a distraction.

it's hit or miss as nothing works 100% of the time.