In an easy and inconspicuous way. Perform an operation and show the result that you want. Presto is a tool that allows you to perform acts of mentalism magic. You could learn to use it, in a couple of minutes, always keeping in mind that showing it could cause great astonishment among people as an act of magic.
Prediction date, time, location, swipe prediction, simple mnemonic and Tamariz and math operations.
Welcome to the revolution of technological magic. Welcome to Presto.