Respect

Enter Shado-Pan Monastery on Heroic difficulty and make your way to the Master Snowdrift event. You need to defeat all the Shado-Pan Novices during this encounter.

Press Shift+V to enable friendly nameplates before the fight begins — when a Novice is defeated and turns friendly, the nameplate change makes it much easier to identify and target them quickly.

Create a macro containing /bow and place it on your action bar so you can react immediately; you have only a few seconds after a Novice bows to you before the window closes.

When a Shado-Pan Novice is defeated it will stop attacking and go friendly, then bow to you — use your /bow macro immediately to trigger the achievement, which is awarded group-wide so the entire party receives it when one player successfully bows.

If you fail to get all Novices, leave the room to reset the fight and try again; also note that the player who deals the killing blow should be the one to /bow, as the Honorable Combat buff must be active on you for the bow to count toward that specific Novice.