- go for harmless pranks; i.e. do something you KNOW won't shock/surprise/scare your friends or audience too badly, a non-jarring change
- jumpscares are a seriously bad idea if your friends aren't already conditioned to them; use very very very sparingly (or not at all)
- please don't jokingly ask someone out
- switching stuff is fun in moderation! i.e. switch names or icons w/ someone
most importantly, make absolutely sure that people affected know it's a prank!