Lightly brush grill grates with avocado oil. Preheat grill to medium-high heat. Place 4 wooden skewers in water for 10 minutes.
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Place the spices in a small bowl and stir well to combine. Liberally sprinkle shrimp with spice mixture. Thread 3 to 4 shrimp onto each skewer. Grill for 3-4 minutes per side or until shrimp is pink and cooked through. Remove from grill and serve. Best served fresh. Can be served cold.