Question is a little mystery. Isn't it?
If it is good, tell her the truth.
If you really do not have positive thoughts, be nice about it.
Once again, you are not too detailed. I am trying to figure you out, but for a simple good example: If I have a friend, who is good in teaching English. Yet, my friend keeps trying to Math and no one can understand them.
I would say, "You are great at English; people really like you for that. Math isn't your strongest point. English is all you."
I would be honest, not lie, and no put them down. I would dwell on what they are good at, not what they suck at. You know what I mean? (if that is the issue here)
If it's a dating issue then that's the tough one, but explain your question better so people can help better.
Answered Jan 02, 2012
Edited Jan 02, 2012