If it's a family "do" where you know everyone, Autograph Bingo is a good one for the kids to do, while the adults mingle. Basically you do a list of traits and send the kids off with a sheet of paper and pen (in pairs for the little ones) to get the signatures of "Someone who...is wearing a gold watch or is a Man Utd Fan or can name the Tellytubbies etc etc. It's good cos you can purposely put traits down of people you know, and of all ages, and the kids like it cos it's a kind of race and there's a prize (bar of chocolate or something) It passes some time. We done it adhoc at a christening where there were lots of bored kids and it went down a treat. That's a warm up for you anyway, or you could get the adults to do it as well (I've done it at work in a group of adults) that way you could put "someone who knows..the name of postman pats cat etc. Making the young ones important. Same goes for teenagers and obscure bands. The world is your oyster with Autograph Bingo and certainly Ok for 2 - 60 year olds. Have Fun.