First time vaper tips?

I know, not weed related! But this is the closest smoking/vape group I could find. My Smok stick v8 baby just came in the mail today and I am super excited! I don’t have any juice for it right now so I’m trying to learn the basics of it, how to operate it and what the different blinks mean. I would love to hear tips for starters and good juice you have tried. Thanks!!