The ability to read minds would be great, but only if I'm able to control it. I don't want to know what every person is thinking about every second of the day-just the ability to read a single person at any given point in time.

The reason:

People lie alot. We all know that. People lie, cheat, and use others, and all the while, they have a sweet smile on their face.
I'm extremely gullable, tend to take people at face value, and hope they are who they say they are and that they can be trusted to be a true friend. Needless to say, that has caused a great amount of hurt at several points in my life.

With the above ability, I can figure out whose really there for me and not this pretending for the sake of what they can get from me. I can figure it out before i dedicate all i have to that relationship/friendship, and learn it's all for nothing.

In short I can seperate the fake- user/liar friends from the real ones.