Typhn's Emotion Sensor

Using this spell, you extend out a minor divination field. Unless protected from divination magics, you are able to discern the strongest emotion being felt by any creature within 30ft of you. Alternatively, you may use a bonus action to set a single emotion in an attempt to pinpoint it on a single target, thusly gaining an idea of how strongly it is being felt by the creature at that time. It must be an established emotion, such as Happiness, Sorrow, Anger, or any of its' variants. (Glee, Frustration, Depression, etc.)

Lastly, as an Action you can attempt to discern the source of this feeling, they make a wisdom save, and on a success, you learn nothing,  and they become aware of your mental probing. On a fail, you gain a vague idea of the source of their emotion, if any. (Loss, Humilation, Accomplishment, etc)