Although you might not feel as comfy during exams as this little chap at the beach, take our advice and make sure you
READ THE QUESTION.
Many students lose points just because they have not read the (full) question or that they have not considered the whole of it.
We understand that the exam is stressful for many (we remember them too) but this is exactly why you should take your time to read the question and stop for a second to see if you have fully grasped it. Only then should you jump into answering it.