Store body flowers in their protective box or bag until the festivities begin. They should be stored in a fridge or other cool location, away from fresh fruit. Do not put them in the freezer!
Traditionally, boutonnieres are pinned on your left side, stem down, by taking the pin and pushing it through the back of your lapel, through the flower stem and back through the fabric.
Traditionally, corsages are pinned on your left side, stem down and are more secure if pinned to your undergarment.
Traditionally wrist corsages are worn on your left hand, with the flower facing up your arm and the stem pointed toward your hand.