Enjoy the fireworks, to whatever extent your local government allows. Raise a glass to the spirit of freedom, as long as you don’t get on the wrong side of the law for public intoxication. Celebrate the freest country in the world, while being careful not to say anything that might attract the attention of the NSA, FBI, IRS, CIA, or other surveillance agency whose existence is currently being kept secret.
Create some joyful booms and bangs of your own, subject of course to those 20,000+ federal, state, and local laws (which surely you’ve memorized), and the completely scrupulously fair and understandable regulations of the ATF.
Drive home safely from your celebrations. And don’t worry; most likely you won’t be stopped on some phony pretext and murdered by an agent of the state who claims to have been scared of you. Be sure not to carry “too much” cash during your holiday travels, though, unless you want to finance the cops in some town you happen to pass through.
And remember gratefully those brave men who bought you what little freedom you have left.