I suggest you should download a few of the fun worksheets that involve specific sets of vocabulary.
Occupations is a good one to start with. One user posted a whole series of like 5 different printables that are a great way to begin a good discussion and get students talking. While they �re learning/reviewing occupations, you also have them act them out, play various games like unscramble words, hangman, ask them what they want to be, etc. I �d suggest beginning each lesson with a 1 minute quick write. Things as simple as "name as many jobs as you can". There are some good songs about various jobs you can always find and use.
Always have a few extra word searches, fun worksheets, pictures to color, or other things for the students to do; try to get stuff you can do on quarter sheets of paper so you can make lots of copies cheaply and also use only like 5 minutes per activity as breakers between things.
I try to start off class with a simple song that we can learn together. "Don �t worry, be happy", "Lion Sleeps Tonight".
A good exercise/song to do early is; "Heads stomach knees toes ears eyes mouth nose".
GL. :D