Turn your burners on to medium-high heat.
Add chicken wings; cook about 5 minutes on each side or until brown on both sides.
For sauce, in a large bowl combine soy sauce, pineapple juice, honey, ginger, and garlic.
Add the wings to the bowl with the sauce and toss them.
Place wings back on the grill.
Cook, covered, for 5 minutes.
Cook, uncovered, for 7 to 10 minutes.
Garnish with green onion.