Some people told me they had difficulties in finding all the endings so I've posted a few hints that should help. Also a WalkthroughLife posted a complete walkthrough of the game.

If you haven't still, please give it a try. It's a short adventure of 2 kids trying to crash a party https://ldjam.com/events/ludum-dare/38/six-degrees-of-separation-between-me-and-the-party