You concentrate psionic power in the palm of your hand and make a melee attack to try to grab the forehead of your victim. If you fail the spell is retained in your hand.

On a  hit you do 1d10 psychic damage + your spell attack modifier and for the rest of the day you gain knowledge from the victims mind, this is to the DM to decide but generally it will be proficiency in a skill o tool that the target had proficiency with, secrets the victim was holding, a language, memories or even simple spells if it the victim was a spellcaster. While you hold the knowledge of your victim he loses the ability to speak that language or the proficiency in that skill or is unable to recall the stolen memory, depending on what effect the spell had. At the end of the day, the piece of knowledge returns to its original owner.

 When you cast this spell using a spell slot of 2nd or higher, you can obtain an additional piece of knowledge from your victim for each level above 1th.