How NOT to shake hands??

[Dana Decker]

you could just pick your nose with your right hand or sneeze in it, either would get the point across

[Dave Sheldrake]

Depends who it is really, the obvious pre-defined for Lodges but in general just a firm but friendly grasp works for me. There are circumstances when using your left hand or offering your left hand would not be good (on religious or sanitary grounds).

To me a handshake is a sign of mutual respect and future / existing friendship, at 6'3+ and 240lbs I don't get too many "crushers" do it twice

cheers

Dave