The amount of shrimp you prepare for poaching is adjusted to your guest size. If David and I are having a cocktail hour for 2, then I make 4 shrimp. I believe 2 each is the appropriate amount of shrimp per guest. Large groups will consume more - and some folks will consume more than 2 if you are not passing these as an hors' d'oeuvre. I sometimes announce "There are two per guest - if you want more - you must barter with someone!"