If other students are not doing so, carnations can be sold for a dollar and delivered to students on Valentine's Day with a message of their choice. This is a high visibility activity, and students like playing Cupid. Language students can be sent in teams to the middle schools to encourage election of a foreign language by presenting a short skit or music in each language. I emphasize collaboration with colleagues because it is not divisive. Prepare curriculum for elementary school lessons.
Advanced students take a week off from class to teach French to the little ones.
They are responsible for contacting the elementary teacher to coordinate lessons, writing lesson plans, and creating visuals. These materials are submitted in advance for review by the French teacher. Students who do not want to participate are given a research theme of their choice to do during the week. This activity is very popular and offers a break in the routine. Students need only a week or two to prepare their work out of class.