place the lobster with the soft side of the shell facing up, cut open - with kitchen scissors or sharp knife, and loosen the meat with your fingers.
into the bowl, add the remaining ingredients:
1/4 cup mayo
1 1/2 tbsp lemon juice
1 tbsp minced shallot
2 tsp dijon
1 tsp chopped fresh tarragon
1/4 tsp garlic powder
salt & pepper