Place spears into a grill basket or alternately, use some skewers if your racks are spaced too far apart. (But really, a grill basket is AWESOME, and totally worth the investment of a around $10).
Toss with the olive oil to be sure all spears are evenly coated, and sprinkle with garlic, salt, and pepper to taste.
Place on a preheated hot grill, lid down.
In about 2-3 minutes, move the spears around or flip them, and in another 1-3 minutes, your spear should be crisp tender.
Serve with a squeeze of lemon juice and possible some parmesan shreds if you can do dairy....delicious!