Staring at a blank piece of paper wondering what to say in your first sentence can be difficult. The way to start your writing process is not to worry about the first sentence of your finished essay, but to start generating ideas. Start by simply listing out the things you enjoy doing. Do you like to hang out with your friends? Are you involved in any sports? Do you like listening to music? Do you enjoy spending time with your family? Do you like reading or watching television or playing video games?
Once you have made your initial list, start thinking about the focus of your essay. You can choose one of two strategies. The first is focusing on one activity you enjoy most and the other is saying that you like to have a lot of variety in your activities.
Once you have made that decision, you have discovered the theme of your first paragraph. If you are writing about a single activity, you can start by saying "My favorite activity is ______" but if you are talking about several different activities you can start by saying "Some of the activities I enjoy are ______".