How to track the liar

3rd time around (multiple characters) I seemed to notice the liars are always in the same positions while everyone else changes. For example what i got is that Andras is always at the far right (Facing the liars) (found 4 times), Walter is about 3rd from the right (found 3 times), and Lucas is about 3rd from the right (found 4 times), i can't confirm the rest, either found them twice or i didn't take notice. And when they are no the liar they are never(?) in that position.

Probably not important but makes it faster when you have several characters.