In my experience, you might annoy the “hardcore” ones, but most people won’t be bothered. Hell, people may honestly join in, so long as you aren’t causing any problems.
A lot of the Faire folk I have met are just happy people are participating and having a good time, and if you put effort into a costume, even better.
"The mug is an extension of my being. Through moving the mug, I move myself.
The coffee is an extension of my will. By drinking the coffee, I drink of myself.
This corpse is an extension of my emotions. By placing it where it belongs, I place myself where I belong."