when the horse infront of you is finishing their show piece walk out of the line up so you are facing left and give the judge a nice out line of you in halt
then walk a few steps then off into trot and trot right round the first corner and down the long side, if poss show a few leghtened strides
on the next corner right canter, round the corner then ride a change of rein, simple change and into right catnter
then canter on to show and extension down the next long side in canter
come round large and stand opposite the line up , dont get on top of the judge sand a god 15m away so they can see you properly
bow

I hate that bit i always feel like a nob
then walk quietly back to your place in the line up
check some vids of showing on you tube if you arnt sure