To prepare the shrimp, insert a soaked skewer into each shrimp from the head side to the tail to keep them straight, then in a pot over high heat, bring water to a boil and cook the shrimp for about 2 minutes until just cooked through, transfer to cold water to stop the cooking, peel, remove the skewers, and butterfly from the belly side without cutting all the way through.
To make the dipping sauce, in a bowl, combine the hot water, sugar, fish sauce, lime juice, garlic, and chili, then stir until the sugar is fully dissolved.
To soften the rice paper, in a plate of water, dip each sheet for 1–2 seconds, then lay flat on your work surface, allowing it to soften as you assemble.
To assemble the spring rolls, place lettuce, bean sprouts, garlic chives, cucumber, mint, and cilantro onto the rice paper, fold the sides inward and roll halfway, then place two butterflied shrimp cut-side down with the tails facing outward so they show through the wrapper, and continue rolling to seal.
To serve, cut each roll in half and serve with the dipping sauce.