Cattalac

I was going to buy a French Vanilla when I saw the following: NOTE: This e-liquid contains alcohol based flavoring (ethyl alcohol). It may have a harsh throat hit or slight alcohol taste at first. After steeping with the cap off for 1 or more weeks you'll find the amazing flavor will come out nice and smooth. Do not judge this flavor until its steeped, it's an amazing flavor. What is steeping?

I have a Vivi Nova Tank (3.5ml) and an Ego C Twist 1000 battery. Do I need an adapter? I had one on the one I lost, but I noticed it worked without one. Is there a complete book (with pictures; I'm easily confused) with a glossary of terms?