Step 1.
Avoid riotous children to get yourself into position.
Step 2.
Help other photo subjects get into position.
Steps 3-6.
Dodge photo bombers.
Step 7.
Make sure all hands and arms are in proper position.
Note: You might need to enlist the photographer’s help at this point.
Step 8.
Cripple the uncooperative with tickling and say CHEESE!