When planning a successful party, it is important to consider your guests interests and likes. For example, if the group of friends that you are having over are movie buffs, you may want to choose a film that none of them have seen, so that you can critique it together. If the group of friends you invite over happen to like games, then gather together a good selection of fun options. You may also want to consider if the group of friends you are having over like each other. People can have a better time if everyone gets along and shares like interests.
An expository paragraph tells you have to do something or how something happens.