[quote=@Sigil]
<Snipped quote by Double>

That sounds like a GM call, here. There are instances in Ocarina where the bearer of a Triforce piece gained a mark on the back of their dominant hand that glowed when in the presence of another Triforce piece. Or great magic. Or just because. Being as our characters have a portion of one of them (Wisdom or Courage), I would argue that it would react in some way. Well, at least at first or if brought close together.[/quote]

The Knight's has been absorbed into his body and appears as a smaller triangle than usual on the back of his hand whenever its power activates (so far, it's only guided him out of the Dark World). I was also thinking that they would glow or react in some way when they got close to other bearers of the shards.