Use 'jape' to describe playful and harmless situations, rather than serious ones. His japes at the family reunion always brought laughter.
Pro Tip 2/3
Harmless Fun
A 'jape' is intended to be fun and not hurt or offend anyone. The April Fools' jape involved replacing sugar with salt.
Pro Tip 3/3
Cultural Sensitivity
Understand the audience before making a jape, as it may not be well-received in all cultures. His jape about superstitions was confusing to those not from his country.