Good to know info while in a hotel

How to check a Hidden Camera in Hotel Room?
When you stay in a hotel, how do you know there is no room pinhole camera? you do not know that you could unknowingly be photographed. You can use this method to check your room. When you have entered into your room, turn off the lights, and close the curtains,open your phone camera, do not turn the flash light on. Turn around the room with your cell phone, when a red dot is found, that means that a hidden web camera is installed.  If no red dots, the room is ok. Please forward this message to your  friends who travel or take a business trip very often. My dear friends and sisters kindly note and be aware
Share with as many u can. Help ur sister, mom ur wife n female friends.......