What is the hand sign for the sorority Chi Omega?

make an "L" shape with both hands
cross the index fingers to make an "X"
make sure the thumbs do not touch so it's an omega and not an omicron

--- that is completley wrong. And funny.

This answer is actually correct as this is a hand sign that is used by some Chi Omegas. The sign that is described above is a common sign that members can use publicly.