Friendship

Near the gate from Route 3 to Nacrene
Right before Carter in the museum
In the museum right after the plasma attack
Right before the second grunt fight
Right before the final grunt fight
Near the start of skyarrow
Middle of skyarrow
End of skyarrow
Somewhere in Castelia
On the way to Pier
On the way back to the gym
Sometime after Jack
While leaving Burgh's gym
While heading towards Bianca
On the way to Juniper
Before Colette
After the musical
In the middle of the drawbridge
On the way to the clay cutscene
In the middle of cold storage
In the middle of clay's gym
Before Bianca
In the middle of chargestone cave