Avoid making stupid mistakes and don't forget to clear and/or change security question. Good luck!
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Never send to an address that was quoted by someone who claims i sent it to him. I will always send the escrow addresses directly to both parties. If youre unsure if the one writing you is really me then ask me to sign a message with one of the above posted addresses. That will prove that i still own this account.
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It's better to sign the message which includes the Bitcoin address (and terms) at first. If you do that all time, users will be aware of it. Else, there is a chance of scam using your account.