DO BE. YOURSELF. That's the simplest advice I can give you. Hunker down, channel the force, and don't second guess yourself. Don't be afraid to just go for it. I think the happy medium mentioned before—between subtle and WANNA MAKE OUT—is embodied in this Vine. And if all else fails, you've still got the eggplant emoji in reserve.
That was a test. DO NOT USE THE EGGPLANT EMOJI. I'm NOT KIDDING.
Got any advice in your back pockets for flirting through the omnipotent c l o u d?