[header] How to revive a plant [title] Identify under-watering by shriveled leaves. [step] If your plant's leaves are shriveled up, then you may not be watering your plant enough. You may also notice that many of the leaves are falling off of the plant if this is the case. 
[title] Touch the soil to determine moisture level. [step] Take a handful of dirt from a few inches below the surface, and squeeze it in your hand.