O Teachers, Where art thou?

So... I 'm sitting here trying to distract myself by looking for an activity or game to play with my adult FCE students later this evening.  So far, nothing.  I don't know if it's just my shy personality that won't let me like some of the 'game' suggestions or it's that I know I would suck at executing them.  I had a friend in grad school who was excellent at this type of thing.  He was high energy...funny- almost like a giant kid.  That is so not me.  I mean, my students laugh at me sometimes and my 'jokes' but I'm pretty sure it's a laughing at situation and not a laughing with.  Nevermind that though...I know there are some teachers who read this on occasion.  Any brilliant suggestions?  I don't want to insult them by making them act silly... but I think two months into the course we are comfortable enough with each other to try some new things.  This group hates to give opinions on most things... getting them to speak sometimes is like pulling several teeth in a very slow fashion- but very enjoyable people all around.  Fairly mixed group in terms of ages and levels but only one who has a lot of trouble with speaking.