To prepare for an upcoming Spanish exam, focus on important vocabulary. For instance, try Quien Soy Yo, or Who Am I, a guessing game to embed key words in your memory. Use sticky notes to write out various vocabulary words that could be included on your test, and then give one to each player in your study group. The players shouldn't look at the sticky note they've been assigned; instead, they should place the notes on their foreheads so all the other members can see. Each player will ask yes or no questions to the other group members in Spanish regarding his sticky note to try to determine what vocabulary word he was given. Keep playing until each player has correctly guessed his word.
If it's an oral exam you're prepping for, you'll want to loosen up your tongue to achieve the best pronunciation possible. One way to get geared up for the test is to do some "trabalenguas," or tongue twisters, with your study group. This silly activity is bound to give your mouth and brain a workout with a few laughs along the way. Choose a few tongue twisters to work out, and see who in the group is able to go the fastest without making an error. For extra fun and practice, make up your own tongue twisters using the vocabulary you expect to use on your exam.
Work on Spanish commands for your next exam by playing some games that focus on giving and taking orders correctly. For example, Simón Dice, the Spanish form of Simon Says, is an active game that should help you get your brain into Spanish command mode before the exam. In your study group, elect one person to be Simón; this person should give the rest of the group orders using vocabulary and grammar from your study material. The rest of the group should follow Simón's orders without slipping up; anyone who makes an error will be out of the game.
If you expect to have to do some essay writing on your next Spanish exam, focus your energy on playing some writing-based games. One idea is to play an ongoing story game. Have each study group member contribute an opening sentence to a story in Spanish by writing the idea down on a piece of paper. Fold the papers and place in a hat. Everyone should select a piece of paper at random, and then contribute another sentence to the story. Pass the pieces of paper around until each person has had an opportunity to add a sentence to each story. Read the finished stories aloud for some laughs.