Counselor Mike Riera says how you communicate can make the difference. I violated her privacy, but I feel being nosy is the only way to know the truth on my daughter's activities. I have confronted her about the cigarettes in her possession before, and she says they are her girlfriend's. If she is already hooked on cigarettes, she's in for a tough road ahead.
Research shows that the population that has the most difficulty quitting cigarettes is teen-agers.
Reference the previous times and any other suspicions you have, including smell of cigarettes and friends who smoke. Focus on your relationship. There is nothing you can say or do to get her to quit. That's her decision. Your best bet is your relationship with one another.