Go to the fuse box on the driver's side footwell. You will see a red tab taht is marked with the symbol of the car's hood raised. Pull this out. this is your positive connection to the battery and a door hinge can be your negative connection. Attach one battery cable to each and the hood will pop open when you press the button.
Sometimes you can also plug a battery charger into the car's cigarette lighter but this may take a while to energize the battery.If the battery is dead, dead, dead, a trickle charger will take forever.
So you need to know where the fusebox is, you need to locate the red tab, you need another battery and you need jumper cables and you need to pay attention to colors on the cables.