Revive this party staple by setting out a bountiful platter of shrimp with three bowls of zingy new sauces. For an appetizer, plan on 1 pound of large shrimp for every 4 to 5 guests. Perk up precooked shrimp in boiling water for 30 seconds. Then plunge them in ice water. Drain shrimp well, pat dry, and serve.