ISFP Personality Test
Follow through the 4 personality trait elements of the ISFP to test how closely you fit the criteria; positive selections will infer a greater orientation.
I

Introversion

Relative to your understanding of the norm's of other people around you...

Tend to spend a greater amount of my leisure time away from social gatherings and groups of people and instead focus on your own activities or those people closely connected to you (In a smaller group).