You speak your truth to a creature you can see within range, . On a successful Wisdom saving throw the target takes disadvantage on the next sttack or save, or loses the will to fight if the save fails. The spell has no effect if the target is undead, if it doesn't understand your language, 

You may also issue a suggestion or nonviolent command . If you do so, the GM determines how the target behaves. If the target can't follow your command, the spell ends.

Approach. The target moves toward you by the shortest and most direct route, ending its turn if it moves within 5 feet of you.

Drop. The target drops whatever it is holding and then exits combat

Flee. The target spends its turn moving away from you by the fastest available means.

Grovel. The target falls prone and then ends its turn.

Halt. The target doesn't move and takes no actions. A flying creature stays aloft, provided that it is able to do so. If it must move to stay aloft, it flies the minimum distance needed to remain in the air.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, you can affect one additional creature for each slot level above 1st. The creatures must be within 30 feet of each other when you target them.