Productive tasks to do on public transport (phone only)

1. If you're James Altucher: test comedy bits.

2. If you're a magician: practice your magic tricks.

3. If you're a fashionista: find a person with an interesting outfit and ask where they got it.

4. If you're a fitness buff: do some pullups, dips or isometric exercises.

5. If you're a criminal: practice your art skills on the walls.

6. If you're a collector: steal some subway ads, use them in your postmodern subway exhibit recreation.

7. If you're a BreakDancer: please don't breakdance. No one wants to see your show time.

8. If you're a gambler: bet with a stranger or friend on a characteristic of the next person coming in.

9. If you're a boardgame: play guess who with your friend, but they're thinking of an actual person.

10. If you're a writer: listen to nearby conversations for quotes or turns of phrase to use in your next project.