I learned this last night. I figured alot of people would find this useful.
It you start the send a tell to someone then you drag a piece of your armor, or weapon, or any item you have to the text window the player you send the tell to will be able to double click it and see a pop up of the armor with its stats and everything.
for example start it like this
/tell Rastigo
then drag your shield to where you would type text and it would say something like
/tell Rastigo "Iron Platemail"
Then when you send it your buddy can double click "Iron Platemail" and see the stats and everything.