Engine-bay

The "Show Me / Tell Me (safety) questions" that you'll be asked on your practical test include some about important fluids in the engine-bay.

A driver is responsible for knowing they have enough  (1)  engine oil,  (2)  engine coolant,  (3)  brake fluid.

Coolant (expansion bottle) and brake fluid (reservoir) have MAX / MIN marks on the side.  For the oil, use the dipstick.
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Bonnet release lever is by the front passenger door hinge.