This is honestly one of my favourite potential questions a group will have to tackle. Obviously the actions the player does have at their disposal will greatly affect what nonviolent response they want to take. Skulking away, making a pact with a supernatural being or even trying to ingest something are all gonna produce distinct and weird moments.
I do think it's probably important to let players know if a GM plans to throw a lot of potential combat at them when they are making characters so they can choose their tools correctly.