WHAT ARE THE DIFFERENT MODES OF WEARING YAJNOPAVITAM?

Different modes of wearing of YajnopavItam:

Deva tarpaNam - upavIti (Left shoulder)
Pitru tarpaNam - prACInAavIti (Right shoulder)
Rishi tarpaNam - nivIti (Garland)
Carrying the Sava(corpse) - nivIti (Garland)
Nature's call - Around the right ear