Step 1
Place the curved tip of the paint can opener under the lip of the can where the lid and can are sealed closed.
Step 2
Push down on the can opener, which will add leverage to the tip and pry open the lid about an inch in that spot. Do not apply too much pressure when prying open the lid so as not to damage or deform the lid.
Step 3
Continue to do this around the lid by turning the can or by moving the opener an inch or two around the lid until the opener has come full circle around the lid.