The daily quest today (buff 5 friends) won't register if you don't "return home" between visiting and buffing a friend.

Example:
- Visit friend 1
- Buff friend 1
- Visit friend 2
- Buff friend 2
- etc etc

The buff works, but it doesn't register on the daily quest.

Instead I had to do:
- Visit friend 1
- Buff friend 1
- Return home
- Visit friend 2
- Buff friend 2
- Return home
- Visit friend 3
- etc etc