CV Joints cause this.
Its usually a U joint. Click under acceleration . While turning,a CV joint. Grinding or moaning is usually a bearing.
Put Key in ignition and turn it a bit.
Most likely a bad connection with your contact points.
The noise's around you are less so the clicking of a dial (or whatever) is more obvious when there is no other "noise pollution" to dilute the sounds of only one thing happening.
A clicking noise is not a common sound for a bad ring and pinion or axle bearings. Use electronic chassis ears (denlors ste6600) to help pinpoint the source of the noise. U-joints in the driveshaft could make a clicking noise although it should click or make more noise on acceleration. I know you said it didn't, but listen REALLY carefully, and if it's still there when you are hitting the gas it could be your struts or your wheel bearings.
Needs a new starter
Nothing is wrong. Your stomache is digesting food, but making noise while it does so. Your stomache is constantly making noise, though it is only rarely audible.
Weak battery? Loose or corroded battery cables? Starter solenoid?
If you mean the car will not start or even turn over when you turn the key, that 'clicking' is the starter solenoid making contact like it's supposed to. But there is not enough power from battery to start engine, only enough to make contacts in solenoid. Bad battery, or loose or corroded battery cable terminals
It sounds goofy, but baby oil, a tiny drop of it is the only way I've found to stop the clicking noise. Where do you put the baby oil?
A ticking or clicking sound is probably lifter noise, the valves need adjusting