Can NOT play with 1 person. That being said it is a really innovative game for 2 people. Sure it might be $1 more than it should be for a 2 person only game but keep this in your arsenal for a good go-to impromptu date. It gets you closer to your partner better than a dinner and movie. It will keep you both laughing and learning together. Its a lot cheaper and reusable. The makers did a bad job with the preview pictures (2 girls dancing together = :/ ) but if youve read this far its really worth while getting for its originality and innovativeness. Directions are not very clear, but think of the circle like an open mouth and the spheres opening like another mouth; since theres 2 players theres 2 mouths making a conversation.