Emotes while running

[Thatguy05]

So i was rolling around thru this here east commons tunnel on my dwarf character checkin prices and i approached an ogre sitting down, so i challenged myself to "dwarfroll" over him. Mid process, i thought.. Why not throw in a /wave right as i approached him running?! So ive tried this challenge multiple times and it says "You must stand up to perform this action". Someone halp i want to Dwarfrollwave!