Dream on! The point of a virus is that you can't see it, nor can you see it's effect on your device (unless your device grinds to a halt, and then it's obviously too late). A virus does not need to be clicked on to install itself on your device. Simply visiting a doctored (which is invisible) website is enough. As opposed to 'Trojan Horses', which do need to be clicked on/installed (but are, obviously, not always easily recognizable as malware).
On Windows PCs, 80% of the funny, amazing, beautiful, and interesting PDFs that everybody forwards to everybody else for viewing contain viruses. Opening them infects the PC. Not Macs! But when Macs forward the PDF they also forward the viruses therein!
Like mikedt said: