Party tricks are packaged responses to things we in testing often need to illustrate. For me they come in three forms, and I have a collection to share these days.
Little exercises that create a shared experience
Stories with an educational point
Testing proverbs (avoid name) and quotes (drop a name)
Let's sample some!
I have found these to be useful from stages, as much as in random work encounters with needs in educating colleagues about testing perspectives and driving through essential lessons.