“The 4th what?”

I mostly lost interest in fireworks a long time ago, but if you want to do fireworks American style just think “November 5th + 20% pointless danger.” E.g. As a kid we used to wrap “whistling pete” fireworks in electrical tape then smash them with a hammer before we set them off. They usually just explode, but sometimes they shoot off in a random direction first.

What I do these days if assume most stuff is closed so I stay home during the day, Then in the evening I might go to one of the parks doing “official” fireworks to people watch.

I do not celebrate treason day you ungrateful colonials

In your shoes I’d be probably pissing nationalists off by saying “it’s a government. A government is a fucking abstract tool, not a person. I don’t commemorate the anniversary of a tool. You nationalists shaking flags remind me cows shaking their butts to show «mooo, I was branded, I’m not a person, I’m a thing and property of my master, this branding proves it!» Now fuck off.”

If however you’re looking for something a bit less socially disruptive, probably “I’ll chill at home.” is your best bet.

If you need me I’ll be sipping tea in the middle of a wide open field wearing my ceremonial red coat.

I mean, this right here is a perfect answer

Just say youre doing whatever it is youre doing. Like "relaxing, staying home" (? If the field is at your home? Or is there no field and that was a joke lol) I'm not from or in the U.S.A. and if someone asked I'd probably just say "just staying home I don't live in the U.S.A. ." (But since you're in the U.S.A. ofc u dont need to say the second part.)