1.  Authenticity is tricky thing, of course.

2.  Carroll warned that Chicago coach Dave Wannstedt likes to try tricky things, such as fake punts.

3.  Determining intent, whether in a court of law or on a baseball diamond, is a very tricky thing.

4.  Emotion in ballet is a tricky thing.

5.  Even Taylor of MCI acknowledged that alliances are tricky things.

6.  He does a lot of tricky things.

7.  Hill explained how tricky things can be.

8.  Leadership can be a tricky thing.

9.  Leading Pakistan is a tricky thing.

10.  Plummer somehow manages to look and sound like Barrymore without losing his own identity or doing tricky things with his voice.