You gain the ability to easily read a person's intentions and body language. Choose a creature you can see and that can hear. You gain advantage on all Investigation, Insight and Perception checks made against the target creature, as well they have disadvantage on all Deception and Sleight of Hand checks against you while you maintain concentration. As well as the normal rules for concentration, the spell ends if the target would succeed in a Deception/Sleight of Hand check against your Spell Save DC, or your Investigation/Insight/Perception check, whichever is higher.
At Higher Levels: When you cast this spell using a spell slot of 2nd level or higher, you gain a +1 to all relevant checks, and the target gains a -1 to all relevant checks for each slot level above 1st.