Start with a room temperature lemon for best results. If they are cooled you can microwave the lemon for 30 seconds or let them sit in a bowl of warm water.u003cbr/u003eu003cbr/u003eRoll the lemon on the counter vigorously for a few seconds.u003cbr/u003eCut the lemon in half and use a citrus squeezer. u003cbr/u003eu003cbr/u003eYou can also use a juicer or squeeze by hand if you don't have the equipment at home. Just be sure to strain the seeds before using the juice.