Expressions that are used so much that people get tired of hearing them are called idioms
metaphors
similes
cliches

Rewrite the sentence, using colloquial speech. what are you doing later?

Let’s begin with some easy sports & leisure: which island nation invented the sport of golf as we now know it?

The first step in preparing for a speech is to choose a topic. list 6 different possible speech topics that interest you and that would be appropriate for an audience of your peers. 3 of the topics should be informative, and 3 should be persuasive. (site 1)