p2p.register_on_right_clickplayer:

Register a player-to-player right click event.

Arguements:

• clicker (userdata of the player that right-clicked a player)
• clicked (userdata of the player that have been right-clicked)

Example of Usage:

p2p.register_on_right_clickplayer(function(clicker, clicked)

    minetest.chat_send_player(clicker:get_player_name(), "Right Clicked "..tostring(clicked:get_player_name()))

end)

Note: This will return a chat message to the clicker confirming that he/she right-clicked a player.