Find the bear statue on the arch
This is the stone-arch bear statue, not the fox statue, the lodge frog statue or a generic panda icon in a cosmetics list. AttackOnMars places it to the right near the end of the upper central lift, reached from the area near the toad statue.
Scout the targets first and prepare snowballs. A respawn anchor near the statue or a coordinated friend helps you finish before an indicator expires.

Sources: JustDom: panda route · AttackOnMars: unlock guide
Locate the three targets before throwing
Ride the upper central lift
Look toward the stone arch near its top. The bear statue stands on the arch, to the right of the lift’s approach.
Find the target by the lift route
As you come off the lift, note the target below its path. This is one of the three associated with the statue.
Find the target under the arch
Check beneath the arch itself. It is not the distant hill target.
Find the hill target
The third target is up the hill south/southeast of the statue. JustDom’s route also describes this separate higher target.
Activate, return and interact
Hit all three in quick succession. The unlock guide recommends friends because the lift-path and under-arch targets are awkward to reach together. Return to the statue and interact while all three indicators are active.
Plan how you will get back onto the arch before starting. The route guides use buildables/boosting and a nearby flag; they do not establish that simply walking past the statue claims the reward.
Sources: JustDom: panda route · AttackOnMars: unlock guide
Select the acquired panda look
Confirm the reward notification, then use a clothing chest at the lodge or elsewhere to select the panda look. If you only saw target-hit points, check whether the statue was still active when you tried to interact.
For other bear and animal acquisition categories, return to characters. The fox guide uses a different statue and target set.
Sources: JustDom: panda route · FaeBee: achievement guide