Lets you assign tasks to other people. Just use their email address. They don't even need to be signed up for Hiveminder!
If you use "give up" or "give away", you can abandon tasks (this is really only useful in a group context, where it means "I don't want to do this, someone else in the group can do it, I don't care who"). You can also give directly to the special user "nobody" to abandon tasks.
See also help context if you're wondering how the last example works!
Examples: