Introvert and extrovert are useful words, but they are often used too simply. Introversion does not always mean shyness. Extroversion does not always mean confidence. The more useful question is how you gain energy, process attention, and recover after stimulation.
An introverted person may enjoy people deeply but need quiet afterward. An extroverted person may enjoy solitude but feel most awake when ideas are exchanged out loud. Many people are somewhere in the middle and shift depending on the situation.
Energy matters more than labels
Notice what happens after social time. Do you feel charged, drained, thoughtful, scattered, inspired, or tired? The answer can tell you more than the label itself.
Context changes behavior
You may be talkative with close friends and quiet in a new group. You may enjoy presenting when the topic matters but dislike casual networking. Personality patterns are real, but context shapes how they appear.
How to use the idea
Use introversion and extroversion to design better rhythms. If you need quiet before decisions, protect it. If you think best in conversation, schedule it. The goal is not to force yourself into a type. The goal is to understand your operating conditions.