Depends on your table image. If you act fast and people know you act fast they will take notice, especially if you do it and show the nuts all the time.
If you are always deliberate and do it all the same way all the time, do it that way as well. Any change is cause for suspicion. So if the people know you they will pick up on it.
Also the way the bet was made. if it was a check all in raise, or a simple all in with no regard for what is shopwing on the board.
It basically on depends on what kind of player you are. And ultimately how many chips you have, and the size of the pot. And to some degree the strength of the other guys hand.