Well, what @beerlover wrote is a bit deceiving, as that implies that 6 staked beer tokens should be enough to invite someone for a beer once a day. But anywho, there's only one way to find out: I'll head over to SteemEngine right now to buy the beer I need, and I'll try it out on you to see if it works. (I hope you appreciate receiving a good brew as much as you enjoy giving it out.)