1. Keep the room clean 2. No entry 3. Beware of the dog 4. Waiting room 5. Switch off all electronic appliances when you don’t need them 6. Articles are considered sold if you broke them. 7. Keep off the grass 8. Use the hand dryer 9. No littering 10. Keep our world clean. 11. Warning ! High voltage. 12. Keep off the reach of children. 13. Keep silent, Exam is in progress. 14. Out of order 15. Caution ! Wet floor. 16. For pedestrians only. 17. Keep your distance. 18. No late comers. 19. Handle with care ! 20. Access for residents only.