"To start press any key... where's the any key?"

You pay for your visitors. Each one has cost you in some way, either spending on Search Marketing, Pay-per-Click adverts, Sponsored Links, media promotions or just old fashioned work and toil on your part. These visitors are fickle, demanding and easily upse, they know that your competition is only a click away, you have to listen to them and give them what they want. By careful analysing how your visitors use your website you can retain more of your visitors and have more of them return for subsequent visits. Those ones, you don't pay for.