Meh...I've found that I like to drip a drop or two into my shots of vodka...makes me look like a badass.
Haha, I do this all the time. I usually do beer of coffee, I've never really thought about adding it to a shot for some reason. When people see me and they know what I'm doing, they usually think it's gross for some reason (almost always a smoker.) But I'm sure it confuses the hell out of people when they have no idea what you're doing.
Once, I was on a plane and my 510 batts were dead. I dripped some RY4 on a piece of apple and ate it. Worked great.
Oh and on topic: I would never drink that drink. Im sure the effects of drinking nicotine are a bit different than inhaling it. I could be wrong, but I would check it out before indulging. And it doesn't really seem as fun either. Or as safe.