How to get more juice out of a lemon?

How to get more juice out of a lemon?

Soak them in hot water for an hour before you squeeze them.

1. Let the lemon sit out at room temperature.
2. Warm the lemon in a bowl of water.
3. Roll the lemon before cutting it.
4. Heat the lemon in the microwave. 
5. Freeze the lemon before microwaving it. 
6. Cut the lemon lengthwise instead of crosswise.
7. Juice the lemon with the assistance of a fork.
8. Use a juicer.