What is the right way to eat a pretzel?!
Answers: Put it in your mouth. Take a bite. Chew. Swallow. Repeat.
any way you like
It may depend on the size and consistency of the pretzel.
So, in some cases, using your fingers would be alright; in other cases, using a knife and fork would be alright it seems to me.
For starters, you eat it with your mouth...
How ever you want there is no law that says you have to eat it a certain way.