Hi @mark012207, welcome to LeoFinance.

A good start would be to read the FAQ here: https://leopedia.io/faq/
And some tutorial here: https://leopedia.io/category/tutorials/

I'm still new over here so maybe my answers are a little inaccurate

1. Creating good quality posts and good quality, helpful comments. Also curating content, but later when you have more leo power (LP).
2. Commenting, voting other people posts and comments, and curation (when you have enough leo power)
3. The typical rules on any forum or social media. Don't be toxic, respect everybody and their opinions, etc.
4. On the wallet section that appears on the dropdown menu over your profile (top right).
5. Your account is your wallet, you can use a tool to manage your wallet and log in. I use Hive Keychain extension and Hivesigner.