Always check the battery first; it is the most common culprit with a dead camera. Is the battery charged? Is the battery inserted correctly? Are the battery's metal connectors clean? (If not, you can use a soft cloth to remove any grime from the connectors.) Are there any particles or foreign objects in the battery compartment that could prevent a good connection?
ith most Nikon point and shoot cameras, you can press a "monitor" button or a "display" button that will place the shooting settings and information on the display screen. Repeatedly pressing this button will cause different information to appear on the screen or will remove all shooting data from the screen.