This slide talks about the theme for Designing Interactions with Electronic course at Media Lab Helsinki this year. The playfulness can happen in the interaction with objects. To make an everyday object playful, you need to observe and understand its usage in sequences and then think how to modify it to let people experience such a fun. During the introduction, several examples was showed to the students.
The most important thing to learn from this course is to “communicate design through prototypes”. The playfulness is such a subjective topic which you need to illustrate expected experience in some format. One of the most valuable ways to do that is to prototype the experience.