To send a message to a noder about a specific wrietup of theirs, using a box on the writeup itself. This automatically prefixes the message sent with "Re: its title". The button at the borrom is labelled "vote!" if you can, or "blab!" if you can't vote as you send it.
a piece of thin board, six inches by four inches, which has a piece cut out of the middle of one of the longer sides, so shaped that you can just force it on to the membrane that divides the nostrils of a calf