This question is asking for a subjective answer. I can provide an answer that is based on my own teaching and learning experiences, and your answer should do the same. Think about learning activities in your English classes that you liked and remember well. Try to incorporate those activities.
English classes can be a lot of fun for both students and learners because of the variety of learning activities that can be done within that learning environment and subject. A student should never be able to say, "All we ever do is read in English class."
A fun English classroom is an active classroom. This doesn't mean that chaos is happening. The goal is for the teacher to target different learning modalities. The standard three are visual, auditory, and kinesthetic. Tactile is sometimes added to the list. Different kids learn in different ways, and lesson plans need to target the various modalities so that all students are learning the content well.
Let's take a typically "boring" topic that usually gets many student groans. Let's design an activity for poetry and say its rhythm and meter. Readers should be able to "feel" a poem's rhythm and meter, but silently reading the poem doesn't necessarily give young readers that feel. Reading the poem aloud helps. That also incorporates the auditory learners; however, having students hop around the classroom and have the hop land on the stressed syllables now involves the kinesthetic learners and helps the entire body feel the rhythm, feel the rhyme, for the class's poetry time.
Acting out sequences is always a standard English classroom activity, but it is often very teacher directed. You want students to take ownership of the acting. Unfortunately, standing in front of peers and acting is scary and can feel embarrassing. The key is using photo and having students create a "live comic strip." The activity works well with short stories. After the class has finished reading and discussing a short story, divide the class into groups of 2–4. Each group has to choose ten (or so) moments/events from the story that could be used to make a ten image/sequence comic strip. Students then have to figure out how to recreate that moment by using props from within the classroom and pose for a picture. This activity works brilliantly if you have a Polaroid camera, because the image is immediate and tactile. In modern classrooms, the pictures can be sent to students to place into a PowerPoint (or similar) slideshow. Whether it is in the digital slideshow or Polaroid picture, students have to write out a quote from the story that explains/highlights what is happening in the image.