They just do it with themselves.
In a rare, slow moment during Wheel of Time‘s second season, three warriors meditate together. One of them only lasts 15 minutes. After he wanders off, the third warrior makes an observation of the second.
“It’s something she said,” Ihvon notes of Lan’s master having abandoned him. “You keep saying it to yourself over and over. A thousand cuts for her one.”
Lan is surprised that Ihvon can read him so well. But Ihvon, like Lan, is an introvert. And for his empathy, too, he has an explanation: “People don’t understand that we quiet ones are quiet because the conversation’s always…playing out in our own heads.”
Introverts aren’t people who talk little. They’re people who only say 30% of everything out loud.
Remember the quiet ones have as much need for conversation as the most talkative among us, and help them bring the right words to the light.