How to practice the psychic diagnostics sensitivity

At first practice on inanimate objects & living organisms with open eyes, which is necessary to create a mental association between the sensations of the hands & visual images of the subjects. As the perception improves, they can be performed with your eyes closed. When training, you should try to remember what sensations correspond to a particular object, material or color.
You can start training while sitting comfortably at the table. Feel the material of the tabletop at a distance with the fingertips of the working hand, pass your hand at the same height over the edge of the table & feel the signal from the floor material, then return your hand to the table & feel the transition of signals, floor – table, at the edge of the table. Remember both signals.
Perform a similar examination of objects of different materials & shapes, using your fingertips to outline the contours of the objects being examined & memorizing the nature of sensations from materials (crystals, knives, salt bowl, jewelry, wood, stone, etc.). Try to determine the difference in signals from objects of the same shape, but from different metals like coins of the same size, copper & nickel.
Examine objects that are identical in material & texture, but have different colors. Take 4-6 square pieces of paper of the same size & texture. Paint half of them black, arrange them at a certain distance from each other. Passing your hand over them, remember the difference between the signals of white as cold & black as being warm colors. If you examine these sheets for a long time, the signal sharpness gets significantly reduced & distorted because of the transfer & mixing of energy fields of different colors by hand. To improve the feeling, you need to mentally remove the foreign color field from the sheet, then remove the signal from the hand by rubbing the hands together or whatever works for you. Do this cleansing with all the sheets, after which the intensity of the color signal will be like at the beginning.
Similar exercises should be carried out with pieces of paper of the same texture of different colors. The brighter, more intense the color, the more pronounced the signal is.
If you don’t have associative perception of color differences, then explore signals from trees, fruits, flowers, grasses, etc.
Use your hand to search for items. First examine an object, such as a coin & remember its signal, then ask someone to move the coin & cover it with newspaper. Try to find the coin by the familiar signal.
& so on, just get creative when out & about, you can scan anything, tastes, smells, history of the objects, people.. Vibrant & fresh information is always stronger & easier to read, then further into past the information reaches, then more faint the sensations are.
I don't advise to scan the mirrors, only when you know what you are doing.