You will need to perform 10 different "stunts" in order to receive this trophy. All 10 are outlined below. (Can be done in any order.)
1. Pet Agro - Press square whole standing next to Agro (no weapon equipped)
2. Pet Agro (while mounted) - Press square while on Agro
3. Quick Start - Left stick down + Triangle (from standstill)
4. Quick Stop - Left stick down + Triangle (while in motion)
5. Quick Turn - Left stick down + Triangle + Triangle (while in motion)
6. Standing on Agro - Left stick up + hold R2 (while in motion)
7. Agro Jump - Just run off a small cliff to trigger Agro jump
8. Wander Jump - Press X (while in motion)
9 Lean and Hang Left - Hold R2 + X + Left on left stick (while in motion)
10. Lean and Hang Right - Hold R2 + X + Right on left stick (while in motion)