1. Prepare all the necessary ingredients: pineapple juice, cucumber juice, celery juice, strawberry juice, and lemon juice.

2. Pour the pineapple juice into a suitable pitcher or container.

3. Add the cucumber juice, celery juice, and strawberry juice to the pineapple juice.

4. Add a few drops of lemon juice to give a touch of acidity to the juice.

5. Mix all the ingredients well until you get a homogeneous mixture.

6. Taste the juice and, if necessary, adjust the flavor by adding more lemon juice or sugar to taste.

7. Pour the juice into glasses or cups and serve chilled.

8. Enjoy your pineapple juice with cucumber, celery, and strawberry juice!