Fresh lime juice is a key ingredient in the perfect margarita, but dive bars typically use sweet and sour, which contain high fructose corn syrup and artificial flavors.
Unless you’re at a steakhouse or a cocktail lounge don’t order a Manhattan because most places don’t have the right ingredients like dark cherries and simple syrup.
Ordering a drink like a mojito will slow down a bartender's workflow and some places don’t have enough room to prep and lay fresh ingredients for a mojito.
Bartender Julien Whaley said his number one pet peeve is when someone asks him to bring a deconstructed cocktail to the table for them to mix themselves.