In my opinion one of the best things you can do to strengthen Bitcoin's place in the world is to demonstrate to businesses that their customers have an interest in using bitcoin to pay for products and services.

• Install a Bitcoin wallet on your Android device.
• Send a small amount of Bitcoin to that wallet (similar to the amount of cash you might carry in a physical wallet, something that wouldn't be devastating to lose)
• Every time you need to pay for something that costs less than the value of Bitcoin you carry in the wallet, ask "Do you accept Bitcoin?"
• Be ready to actually pay with your Bitcoin if they say yes

99.99% of the time, they're not going to accept Bitcoin, and sometimes they'll think you're silly for asking. However, hearing this question plants the seed of thought in their mind that perhaps a competitive edge might be available over their competitors by simply accepting an additional form of payment. The more people they hear it from, the more pressure they'll feel to provide Bitcoin as a payment option.