Humor [playfulness]: Liking to laugh and tease; bringing smiles to other people; seeing the light side; making (not necessarily telling) jokes. Personified for example by Mark Twain (Source: VIA Institue)
The Noel Strengths Academy defines it this way:
• Those with the strengths of humor like to laugh, tease, joke but not in ways harmful to others
• Brings smiles to other people’s faces
• Are able to seeing the lighter side of difficult issues
• Can laugh at themselves; don’t take themselves too seriously
• Playful