In my mind, ketchup is in its own separate food group. I love ketchup, I can't and won't eat my fries unless I have ketchup. The fries can be smothered in cheese, bacon, chives, or whatever else is put on fries and I will still dip them in ketchup. You wouldn't think something like the way you put your ketchup on fries says anything about the kind of person you are, but it certainly does.
If you dip your fries in ketchup that comes in a little container
You're the kind of person who thinks a little goes a long way. "Go big or go home" is definitely not your mantra. Your mantra is "less is more."
If you squirt your ketchup on the side of your plate and cover the fry in ketchup
You like control. You like to make decisions and decide exactly how much ketchup you want on your fry. You're a typical type A personality. You know what you want and when you want it. Maybe you want to cover one fry with ketchup and another fry just barely dipped. Either way, you're prepared to make that imperative decision.
If you lightly drizzle ketchup all over your fries
You like surprises, are extremely unpredictable and have a hard time making decisions. Maybe you want a lot of ketchup on one fry but not that much on another fry? Who knows? No one ever knows what you're going to do or say. You're the definition of unexpected aka you're a wild one.
If you flood your fries in ketchup
If you flood your ketchup in fries, you're extra AF. You always do the most, in every aspect of your life, including food. Is it really necessary to douse your fries in an obscene amount of ketchup? Probably not, but you don't care. You do what you want and don't care what anyone has to say about it.
No matter how you put your ketchup on your fries, the power of fried potatoes will always bring all the different types of ketchup users together.