- The fridge door opening
- The front door opening
- The produce drawer opening
- Any drawer opening
- A bag rustling
- Voices in the morning
- A toilet flushing in the morning (I'm not kidding)
- Dishes clanking
- Any noise from the direction of the kitchen
If the normal WHEEK sound doesn't produce results, get up on top of your house so your little voice carries farther. Then have your friend chew on the cage bars. Then run around in circles and start over.
You can also do this at random times if you're just bored.
Remember... it doesn't matter how much hay or pellets you have, set goals. Lettuce, carrots, spinach... it has to be fresh and delicious. Don't settle until you get what you want. Also remember that if a human comes home and feeds you veggies, you need to be ready to start all over again when another human comes home, because it's a whole new game. Even if only a few minutes have passed, you're entitled to something wonderful.