To an ISTJ, friends are secondary to their family. ISTJs generally seek out friends who are like themselves — someone who is dependable and smart, and shares the same interests and values as themselves. Their friendships centers around trust and loyalty. Friends of ISTJs never have to worry about an ISTJ betraying them.
ISTJs are very aware of their own and others’ social status. They are drawn to others who are well-liked, successful, and respected. However, ISTJs heightened awareness of social status can sometimes become overly-concerned with their social status. They may become preoccupied with getting others to like them.