How not to sound weird when talking to authority?

Before we speak it is good to be aware of who we are speaking to. Know your audience. If you have noticed that they have certain preferences in the way they would like to be addressed, try to keep them in mind. Adopt a non-argumentative and respectful stance, even though you might not always agree. Stay confident, maintain eye contact and try to communicate efficiently with clear, concise language. But remember, people with authority are human too. So there is no reason to be afraid of them.

I think that comes with confidence, don't over think it. You know what you want to say, don't wonder if people think it's weird. It's not.

Just stay calm. Im assuming by authority or mean law enforcement. I would think they're used to people sounding weird with them considering who they are,

Be yourself and be polite, such as adding mam or sir, mr and mrs/ms to maintain that formal boundary.

Respect. Always. Be polite on even the smallest things. Don’t use any type of slang like you wild with your friends.

Just be kind - as long as you can convey a positive tone, or emotion whilst you're talking to them then you'll be a-ok. Introverted and feel like your rambling or not talking enough - as long as you're projecting positivity or being receptive to what they say - then they'll be more welcoming and accepting.

When talking to authority remember to be respectful but don't think they're better than you in any way. Talk normally, but be proper.

Try and relax a little but remain in a formal matter. Don't let anxiety manifest into physical form and prevent you tackling the task and hand and speak as if they were a friend and you were at a formal convention.

You can sound less awkward and weird by just talking in a calm and collective voice, and addressing them by “sir” or “ma’am”. It could also help if you don’t look like you’ve seen a ghost, and look at them with a calm look, not looking intimidated. Looking intimidated can make that person feel uncomfortable and weird as well. It also depends on how well you know them, or their personality. If you know them well, you can maybe say hello by addressing them by their name. If it is someone who is new to you, you can start by saying hello, and eventually ask them questions to get to know them better.

When we speak to authority we should be respectful, compliant and understanding. If we become anxious or nervous our speech becomes impaired and anxiety can take charge of the rest of our actions. To prevent this, remain calm and think that if nothing wrong has been done, nothing is to be feared as authority is usually in that authority position because they are either qualified or trained. Be honest with your actions and with your words, seek to not be hostile and to comply with reasonable requests, authority figures are to be respected at all times as they can impact our livelihood if we don't comply with their requests.