DD (10) is generally a bright happy girl who is doing very well at school, loads of friends and interests. Over the last year I've noticed her lying about small and often silly things, not in a malicious way, but to cut a corner or get out of a sticky situation or avoid people being cross with her. I always pull her up on it, and talk about the importance of trust and honesty. We had an incident at school yesterday which involved her lying about something much less small and silly, and maintaining her position for hours, before admitting she had been lying all along. Any opinions on how best to handle? Thank you