1. Tip #1: Only use Multisignature wallets where you control the majority of the keys. (Like http://Greenaddress.it, when you set it to 2-of-3 keys.)
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4. Tip #2: Be ready for the trolls, especially on Reddit & Disqus.
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7. Tip #3: Read Satoshi's whitepaper so you don't embarrass yourself telling others how it works: (http://bitcoin.org/bitcoin.pdf)
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10. Tip #4: Understand where the true value of a bitcoin comes from; The usefulness of the blockchain.
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13. Tip #5: Understand why the blockchain is worthless without bitcoin the currency; No incentive for miners to maintain it.