1. You know if you scowl it will go viral on Facebook in 15 minutes.
2. As a facial treatment to reduce frown lines, a plastic smile is cheaper than plastic surgery.
3. Your best friend is marrying without your consent. Try to look positive for the wedding photographs at least.
4. According to research, frowning uses 23 muscles, a natural smile uses seven, and a plastic smile uses 140, so it’s an all-round better facial workout.
5. A plastic smile and accompanying nods are a good response when you have no idea what someone is talking about.
6. A fake smile costs nothing except a risk of a stress-related ulcer, but that is hard to measure so it doesn’t count.
7. Plastic smiles are easier to master than a plastic smouldering glare or a plastic pensive gaze.
8. A plastic smile is always the correct response to an embarrassing fail.
9. Smiling a plastic smile could hold the key to your next promotion or cracking that highly lucrative deal. So suck it up and put on that smile!
10. When you snarl the whole world snarls with you or at you – and that’s not a pretty sight.
