How to Make It
Whisk together mayonnaise, lemon juice, and chervil, and season lightly with salt and pepper. Stir in celery, and fold in chopped lobster meat. Cover and chill up to 4 hours.
Heat a large skillet over medium. Butter sides of buns, and toast in skillet until golden and heated through, about 2 minutes per side.
Fold chives into lobster salad. Place a lettuce leaf inside each bun, and divide lobster salad evenly among buns. Sprinkle with chives. Top each with 1 pincer claw, if desired. Serve immediately.