While you may always be introverted, there are things you can do to be less reserved and more extroverted.
In general, most people tend to fall under either being more extroverted or more introverted.
The solitary pounding of the pavement during a jog or the self-imposed isolation of standing in a corner lifting weights can get a bit tedious, especially for an extroverted person who thrives in the company of others.
Although she continuously delivered good photographs, her extroverted personality sometimes bothered the judges because she was sometimes considered rude.
Zinfandels are generally not shy and this 2002 William Selyem Bacigalupi Vineyard red has a "Type A" personality with extroverted fumes.