The president would need the bill to be read by three different parties such as the Executive branch, the Legislative branch and the Judicial branch. These branches have people in their branches that take readings.
first the bill would be handed off to the first reading where it will be looked at and seen what they need to check for mistakes and the want for the law.
Second reading gets looked at again by another group of people and can be rejected but also be rejected at the first
then third goes to the third reading and is passed on to the governor general to be placed into Royal assent where it is officially a law.