Drama is an effective way of helping students to learn languages including English as a Foreign Language (EFL), as it uses active teaching and learning styles likely to motivate and sustain the attention of a wide cross section of pupils. Activities can include role-play, drama games, improvisation, group discussion and individual or pair work.
The activities which follow can easily be used along with other teaching techniques, or you might like to choose some to put together as a drama session. They are suited to a range of learning levels, so you will need to decide what is appropriate for your group.
To begin with, you could use a couple of warm up activities like Clap Around The Circle which may not even use language, but will introduce the class to the enjoyment, participation and cooperation which is a natural part of drama activities.