I have my first ever e cig, it is the Riva 1100. I have added the juice to the atomizer/tank charged the batteries and turned it on with the 3 clicks. Nothing seems to be happening at all. Tried clicking another 3 times on and off (supposedly) and still nothing. How do I know if it's on or off and how soon should I be able to see vapour when I turn it on. Very frustrating.