As easy at it sounds people. I start us off with a word, you then post a reply with a word you would associate with the previous one. Simple. For example:
1st word:
Christmas
2nd word:
Tree
3rd word:
House Do-you-see? I shouldn't have to say keep it clean, and keep it relevant, but I will anyway. I know what you lot are like ;) By all means comment on the previous post, but the first word of your reply
must
be the next word for the game. This might not work very well, but we'll give it a go anyway.