How do you greet a stranger? Handshake? Hug? Go Euro with a double-cheek kiss?
Scientists at Oxford University decided to clear up this common social dilemma.
They conducted the largest study EVER about where people feel comfortable being touched.
The takeaway? You'd better keep it to a handshake.
The researchers published a handy "body map" to demonstrate their findings.
Over 1300 men and women filled out forms showing where they would prefer to be touched.
Unsurprisingly, women only accept touching on the hand from strangers.
Men, on the other hand, don't consider any touch from a woman to be absolutely taboo.
Well, unless that woman is your mother.
These striking images clear up the issue of social touching. When in doubt, go for the handshake.
