May 1st is a public holiday and celebrated as the International Worker's Day. In Canada and the United States, the holiday is celebrated on the first Monday of September and considered the unofficial end of summer.
In the second part of the post there are some examples of how you can use (verb + ER) or (verb + OR) to create words that mean the person who does an action.
Notice that cook ?? shown in the first part of the post is an exception.