Depending o nif strangers include other middle schoolers you don't know, there can be various ways!
-Posting on social media, spreading positivity through posts
-Complimenting people you don't know on specific things (just don't make it creepy)
-Volunteering at soup kitchens, clothing drives, etc
-Smiling at people you see on the street
-Being nice towards everyone, even if they haven't been nice to you
-Helping people who are in need of help (Ex: someone just fell and you help them up, someone dropped something and you can afford to pick it up for them)
-Even something as simple as holding the door open for someone!!