Based on the provided reference, here's how to juice a lemon with a fork, according to the video's demonstration for children:
The video explains how to prepare a lemon for juicing and uses a fork as a juicing tool. The process involves:
- Cutting the lemon: The lemon is pre-cut, ready for juicing.
- Fork Placement: The lemon is placed over the top of the fork.
- Juicing: The lemon is held in the hand while being juiced with the fork.