Firstly always pay attention to red borders, usually these mean "Don't Do This" or "This is not allowed here".
Always remember the upside down triangle, this means that you should "Give Way" , This is the most common sign.
Keep an eye out for warning signs.Most of these signs come inside a triangle form, for example if you see an aeroplane in a triangular, it means there might be a plane flying now.
Recognise the colour of direction signs.They all differ with colour but once you master that you will know.
Never Make Assumptions, traffic signs might mean the opposite of what you think and that could cause some chaos.