Often the watershed in the transition from geek to stealth geek is the purchase of contact lenses, but this is not always the case. A more stylish pair of glasses may replace the sturdy, practical pair worn in the past. Stealth geek appearance is highly individualized. It could be said that a Stealth Geek is a geek who has developed social skills. A geek is generally not aware that he or she is a geek.
Geeks tend to think they're the coolest things around.
They can't distinguish in conversation with the opposite sex between polite interest and desire, and tend to err on the wrong side. On the other hand, a stealth geek is aware of geek tendencies, and while not wanting to change his or her self internally, makes an effort to learn to deal with non-geeks. This may come about due to career necessity, when they have to deal with non-geeks in a business environment. It also may simply come about with maturity. They may think that when Star Trek finds its way into a conversation, but they don't think it because of general behavioral characteristics.