I'm looking for a word that describes a choice made without reason, but that has a neutral-to-positive connotation. I had always thought that "arbitrary" is inherently neutral, but in practice I've found most people take it pejoratively regardless of the context.
My idea is to encourage someone to make a choice without encouraging creativity, to relieve the pressure of a decision without discouraging personal intention, i.e. to say that the choice can be meaningful or meaningless. The best I can think of so far is "random" but I'm unsure if the positive meaning is conveyed when written.