Rather than looking at how many units sell… it might be more useful to see if the people buying the product can consistently see their picks go belly up.
And they concluded what experienced bar-goers may have already discerned: the surest way to get your order taken is to belly up to the bar, and make eye contact with the staff.
Now, if we can pull this off, you and your little lady friend will be belly up to a ice cream counter having a milk shake with two straws. What do you say?