It's obviously not going to work in every shop (actually, it won't work in most shops) but I like the concept of the person who greets the customer taking them through the whole process.
You take their order away from the register. Fast food chains were the ones who started the concept of taking the order in front of the register. We have a hard enough time being compared to the fast food company of our industry without making it feel even more like a fast food joint.
You talk about the drink you are creating for them while you are creating it. If they aren't familiar with your shop you talk about your coffee model in general. If they are familiar you talk about what you are getting off of the espresso/coffee that they are drinking that day. The milk is really sweet today, the chocolate is really popping on the 'spro, the fruit is more forward today... whatever.
Put the drink (that you just knowingly explained as you were crafting it) into their hands. Look them in the eye and ask them to taste it before they do anything else. Do they like it? Do they get something different than you? How does it compare to ______'s?
Oh... yeah... the money part... well that's down here (and you head to the register).
Like I said, it's not going to work for most shops, but when it can work it's amazing. Your baristas all need to have very similar technique because multiple people are using the grinder/machine etc. Then again, your baristas should have really similar techniques anyway, I suppose. There is also the whole "more than one hand in the register" thing that a lot of shops try to avoid, so that makes the model not work for some people...
...but at the end of the day if you can pull off that system I think it's pretty great.