http://mdgdxj5d7wlgq3m6e4fvca5sgnbvejsyjh3sqh3p3tfngcnrhpuy3aid.onion/2013/greetings.html
Nice or mean depends on how you point your finger and which finger you used or how you used it (E.G. by showing, pointing, pulling the pin on a grenade, the trigger of a gun, or pushing into their eye etc...) or if any fingers are involved. Usually the more fingers are involed, the friendlier the greeting.