Voting: just click on the tiny arrow underneath a comment or post; if it turns blue: you've upvoted someone. Steem is something you can trade on tje intern market and on bittrex and exchange it into bitcoin or other altcoins. Steempower; people with lot's of steempower who give an upvote is money worth. Ours not (yet!). I am a bit in a hurry, but if you have questions, ask them. I am not the best person to ask; otherswise turn your questions to steemithelp (from @thecryptofiend).

Maybe you can start by using this new tag: newbies, under your posts!