The goal here is to paint another, better face on top of your own face. Draw on your eyes and lips with glorified crayons (or, if all else fails, actual crayons). The "smoky eye" is a thing people say a lot, so maybe do one of those. Learn from my mistake, though: The name is a metaphor. This technique actually involves little to no actual fire.
You'll know a device is meant for your hair if it looks like a prop in a sci-fi B-movie from the '50s. Much like a friend's universal remote or a newborn baby, there's no way to know what it's meant to do until you try. Point it at your head. Does your hair look better? No? That makes sense. I gave you some pretty awful advice just then. That's OK; no one really cares what shape your head proteins are, I bet.
Put down those faded overalls, friend. You're hitting the town tonight. Time for your party overalls.
Did you do all those things? Great! You're ready to appear in 40 nearly identical Facebook photos tomorrow morning.