Every Magi has his own unique Sigil. A Sigil being a trait or aspect of one’s Gift that is carried out in all of that magi’s spells. Just as each literate scribe have a unique handwritting, every spell that a magi performs bear’s his Sigil. The words aren’t different, nor are the spells, just the flair… Not to say a wizard’s Sigil never plays a role. We all know of Tim the White, whose White Sigil allowed his white flames to go unnoticed by the Ice Sorceress Magda in her sanctum until too late…
All magi vote in Tribunal by casting their ‘Sigil,’ a physical token often, but not always related to their own Sigil.
Clement the mild’s Sigil is lavender, often one knows he is near by the smell of fresh lavendar in the air.