Now you should create a WANTED poster.
Go to https://www.mobilefish.com/services/wanted_poster/wanted_poster.php
and read through the instructions given.
You can easily generate a wanted poster. You only need to upload a suitable picture and fill in some information (name of the person, reward,..).
Then, click on the button "generate" and within some seconds, you can already look at your poster.
Save it to share with your classmates (or print it).
Each classmate should have a poster of another person. Now describe the person on the poster so that you can find the wanted person. Have fun!