What’s a nice way of saying “don’t be weird?”

Sorry sir but I do not partake in drinking from the cup of your particular weirdness.

Maybe try Reverse Psychology?

There are always a better way to say things, with out being rude.
The best way is to set boundaries from the beginning. So things don't get to this point. However, some don't get it. Simply ask him that you don't like it.

Try not to act like yourself.

If that person is sincerely being themselves, I tend to like weird people. If they don’t make sense to me and I can’t help them I stay away from them. But maybe you are one of lthe only persons that can tolerate them, and maybe “don’t be weird” is the best you can say… the only other thing g you can say is : ”hey stop, you’re doing it again” and when they ask “doing what?” Answer “being weird”.

as a weird guy myself, I always the definite answer of the direct approach, let's me know you're not 'my people' let's me cut it clean and move on to other endevers.

I usually justvignore them unless its actually effecting my ability to do something then im just blunt about it.

"When we get there, read the room. Don't bring up anything they don't seem receptive to."

I mean thats pretty solid I think. Its blunt but not rude. No room for misinterpretation.

Have you thought about professional help?

"You know how everyone always says 'be yourself'? Yeah, don't."

Not saying anything at all?

I use a squirt bottle of cold water....usually works 😁

I can't think of anything nice.

My first thought was simply "don't be weird - please... !", but maybe that can be misunderstood as well 😀

interesting...

Look down and up....

(Meaning grow up)

You are in public!!!

Don't be you.. As in their normal self

A few ways.
Ask if they are schizo.
OR one of these cliches -
Why are you like this? What is your damage? What is wrong with you?

OR send them a text saying, "Quit being such a spazz" and when they confront you about it and show you their phone, pretend not to see it. Then just claim that google has been sending out subliminal text messages. 😁

Stop being weird ...just be upfront

say the opposite like please be normal

Come back when you're feeling normal

"youre being weird.. STOP BEING F**KING WEIRD"!...

say, be cool or gtfo

"Let's pretend we are normal for a bit. "

Kick rocks kid.

🤌

Everyone should be themselves, except you, you need to be someone else.

Behave or the freakin ufo will take you back home

Stop it, man; I suck you up!

Stop being a Moderator

Be normal 🤭
Act like a normal human being FFS you moron