how do you get the bee to sting?
Use cross locking tweezers and grab the bee by the thorax. You need to bend the tweezers so they just hold the bee snugly without crushing it. Some folks like to have many pairs of tweezers and load all the bees they need before starting. The just rub the but of the bee where you want the stinger. Don't be alarmed if you get a bee or two that won't sting you, it is common, just get another one. Leave the stingers in for 15 minutes before removing.
Don't forget to be taking plenty of vitamin C, and ice down the area you plan to sting before hand.