From the website:
You know that situation, the one where you are and your acquaintance friend and your significant others get together finally for dinner after months of saying “yeah, we should do that!” But what do you do to break the ice? How do you get to know each other and get rid of the awkwardness. I hate that feeling. You certainly don’t want to just sit there about talk about work or all about yourself and you know at least one of you is very introverted and won’t just contribute to the conversation. That is when you break out Knee Jerk! The perfect solution to awkward situations so you can move on the a fun evening with people you want to get to know better.