Some say that to truly experience an authentic swizzle cocktail one must use a swizzle stick to swizzle the drink. What the hell, you may ask, is a swizzle stick? What is swizzling? A swizzle stick is a long branch with a bunch of smaller branches coming out of the end and it comes from the Caribbean Swizzle tree. You then use the swizzle stick to mix the drink by spinning it between your palms quickly. This has a similar effect to shaking the cocktail since it mixes, aerate and rapidly cools the cocktail.
Now you don’t have to live in the Caribbean and use real swizzle tree branch to do this. If you try to buy one online they run about 20 bucks a branch! and it literally just a stupid stick. There are metal swizzle sticks and those go for about the same price but at least those are metal. What I would do if I were you is just swizzle it with your bar spoon for the same effect or just use a shaker. The shaker will make for a better product anyway.