You suggest a course of activity (limited to a sentence or two) and magically influence a creature you can see within range that can hear and understand you. Creatures that can't be charmed are immune to this effect. The suggestion must be worded in such a manner as to make the course of action sound reasonable, or be negated.
The target must make a Wisdom saving throw. On a failed save, it purses the course of action you described to the best of its ability until the activity is complete or the spell ends.
You can also specify conditions that will trigger a special activity during the duration. If the condition isn't met before the spell expires, the activity isn't performed.
If you or any of your companions damage the target, the spell ends.