In a large bowl, stir the celery, mayonnaise, chives, tarragon, lemon juice, 1/4 tsp. salt, and 1/4 tsp. pepper. Stir in the lobster meat and season to taste with more lemon, salt, and pepper.
Position a rack 6 inches from the broiler element and heat the broiler to high. Toast both outside surfaces of the rolls under the broiler, about 1 minute per side. Spoon the lobster salad into the rolls, using about 2/3 cup per roll, and serve.
Compliment these rolls with Grilled Corn on the Cob with Thyme and Roaster Red Pepper Butter.