Open the bonnet, identify where you would check the engine oil level and tell me how you would check that the engine has sufficient oil.
Identify dipstick / oil level indicator, describe check of oil level against the minimum/maximum markers.
Open the bonnet
Find and identify the dipstick and remove it to check if the oil is between the minimum and maximum markers.
Wipe the dipstick with a dry cloth and then check the oil level again.
If it needs topping up you can do so via the oil filler cap.
Your should check your oil level every month, if it needs topping up you should do so via the oil filler cap using the manufacturer's recommended oil.
You should also be aware of the oil level warning light on the dashboard. This light with inform you if your oil level is too low.