Not being naive or gullible.

Just being brave.

Trying what no one else tries.

With kindness.

So nobody call Papyrus dumb or stupid or naive for not attacking you in the murder run, for he knows this is dangerous but still does it, to help you and to (attemptively) save everyone else who's still alive. Which sometimes is a success, and other times a failure.

All you gotta do is gamble in a situation like this. And then take the consequences that come afterwards.

This scene is definitely my headcanon in the game.

Btw Frisk looks so cute being so tiny and held in Paps' arms<3 (looking aside that they have just been killing everyone)