This is a bit tricky. The description is to rotate the avatar, however the truth is to rotate the background.

Step 1: Switch to the advanced UI, go to the environment gallery,

Step 2: Choose a 3D background(e.g. apartment/ street/ afternoon... it will tell you in its description. If not work, change to another 3D background)

Step 3: Press ctrl (the default key binding, or you may change it in the options-preference-key bindings) and move your mouse to left/right.

Step 4: Wait until it rotate a whole circle, and the achievement pops up.