What shifts a read is consistent, precise change to the cues you give off, repeated over a stretch of time. No single moment or standout performance does it on its own.
The specific moves depend on where you're leaking most. The direction, though, is always the same:
from ambiguous to legible. From "still working out whether I'm allowed to be here" to "I know where I stand, and the room can see it."
The work splits three ways.
In language, it's
dropping the apology framing and hedging that broadcast low status before you've said a word.
In how you hold a room, it's claiming space and keeping your position when you're challenged or talked over.
In authorship, it's keeping the link between your name and your work visible to the people whose opinion moves things.
All of it comes back to the cues you send, and whether they match what you're actually worth. Working harder was never the lever.