I don’t suggest that extroverts are incapable of calming down any more than I think introverts are incapable of being social. We all have the capacity for both. But our culture thinks nothing about affecting a patronizing you-can-do-better tone with introverts who want only to live true to our nature while letting extroverts just chatter blithely through life without a thought to the alternative.
The important thing is to determine the right time to speak and wait for it. Some people don't speak even on the right; the reason for their silence is that they don't want to hurt anyone or to create any unwanted situation.
In some situations, you must have to remain silent or learn to be silent to avoid any unfortunate situation.
Read a book for one hour. ...
Take a solo, silent hike. ...
Invite a friend to lunch or dinner. ...
Eat a meal in a restaurant alone, without chatting anyone up. ...
Go to a movie alone. ...
Step to the side at a party. ...
Don't go to the party at all. ...
Don't make weekend plans.