At the scene of a car accident:

Be sure police are notified (call 911 regardless of location or situation!)

If applicable, attend to and address any related injuries (within your capabilities)

Do not move anyone injured (as to not make them worse)

Be sure everyone remains in a safe place and position at the scene

Do not admit to fault
under any circumstances

Take pictures of the accident scene as soon as possible (before the vehicles are moved)

Do not allow pictures to be taken of your driver's license (for identity theft reasons - other driver only needs your name and contact info)

Take pictures of damages (be sure to get picture of other driver's
license plate)

Provide your insurance information to other driver

Record (make notes verbally or on paper) any information you can recall about what happened while fresh in your mind

Get contact information for any witness

Notify the insurance company as soon as possible
(-)HIDE