Try shooting photos of people who you don't know, don't be afraid to ask or bribe them for steeling their soul with your camera. Take your time and ask them questions while you are shooting, this might help animate them, and clam your nerves (I always get nervous when shooting strangers). Or you can be really sneaky and try shooting them without the stranger knowing it. This challenge has no deadline.
Here are some samples that I shot around Huntington Beach.