Boil a pot of water and place the wood skewers in. Boil for 1 minute or so to clean them and add moisture so they don't burn when you grill them!
In a small bowl, mix the salt, garlic, ground cumin, minced onions, oregano leaves, and cracked red pepper. Reserve 1/4 tsp of the mixture for later.
Brush the steak with a tablespoon of olive oil , then rub the steak with the larger portion of the seasoning mixture. Refrigerate and marinate the steak for at least 30 minutes.
In a medium mixing bowl, combine the lime juice, remaining olive oil, and reserved seasoning mixture. Set aside.
Thread the pineapple chunks onto skewers.
Grill the steak on medium high for about 6-7 minutes on each side, brushing half of the juice mixture on the steak while it grills.
Grill the pineapple and turn occasionally, grilling for about 5 minutes. Brush the remaining juice mixture over the pineapple skewers.
Serve the steak and pineapple side-by-side immediately!