All pass right shoulders and middles clash, then middles pass right shoulders and clash with the ends. Notice who you're facing. Circle back the way you came, into a line, and clash in line. Pass the person you're facing by right shoulders, growl at the next person, turn over your right shoulder, repeat and clash in line. All turn individually over their right shoulder, then the ends lead the middles back to line, passing the other couple by right shoulders again.
Ends turn over their right shoulder and all clash in line.
At this point the line will be inverted. Clash in line. Repeat this whole sequence and you'll be back to where you started.