Many skin imperfections can be removed or diminished by surgery, chemical peels, lasers, etc. Consult a dermatologist in your area for more information. Men and women will have fewer wrinkles if they sleep on their back, placing a pillow under the knees to maintain that position. It's free and nothing improves a face quite like a smile. Think about it.
Some singles smile often by habit.
Some don't pick up this easily-acquired inclination. Other singles don't smile because they don't want to show their teeth for some real or imagined defect. If the appearance of your teeth bothers you greatly, however, cosmetic dentistry is available and can do wonders for your smile. Since Christmas is just behind us, think back to your presents. Probably the one that was packaged well.