Narrated Abu Waqid Al-Laithi: "The Messenger of Allah ﷺ was sitting in the Masjid and the people were with him when three people came. Two of them came near the Messenger of Allah ﷺ and one went away. When the two stopped at the Messenger of Allah ﷺ the said the Salam. One of them saw an opening in the circle so he sat there. As for the other one, he sat behind them, and the other one went way in the rear. When the Messenger of Allah ﷺ had finished, he said: 'Shall I inform you about the three people? As for one of them, he took himself to Allah so Allah took him. The other, he was shy so Allah (had mercy) on him. As for the other one, he turned away, so Allah turned away from him'."
The hadith also speaks about shyness being a virtue; it shows how even if someone is shy but still has faith in Allah, they will be rewarded with His mercy. This teaches us that even if we are shy or introverted, our relationship with God does not suffer because of it; rather, our humility can be seen as a sign of respect for Him which He rewards with His mercy.