Temperature hand don't do anything to show car temperature, what can I do?

Could be as simple as a coolant temperature sender.

No outside temperature just shows the temperature outside the car the snowflake symbol will not show up until it is cold enough outside it has 2 stages yellow is an initial warning of cold temperatures when it gets to freezing the symbol will turn red.
The outside temp warning is not connected to anything mechanical only the engine temerature gauge is so dont worry it will not affect the running of the car but is just there as a warning of falling temperatures outside.

If it's after you've driven someplace, the car will do this on it's own. It's to bring the coolant down to a lower temperature...a lot of cars will do this. It's just to finish cooling the car down. just don't put your hand near the fan, it might go on suddenly..

replace the thermostat,, and make sure that the fan engages , just because the fluids don't boil over doesn't mean the temp isn't to high, if your saying that the temp gauge is stuck on the hot setting, and doesn't move even when the car is cold,, thats a different problem,, if thats the case whats the make , model , and year

Change your Fan Clutch. If the fan is not kicking on to move air through the engine compartment then it needs to be replaced.
The fan clutch is attached to the front of the fan (the part of the fan that is closest to the radiator) it usually looks like a round piece of metal with fins on it. You don't have to take off the fan shroud or anything if you dont have to. in most cases you can squeeze your hands back behind there to get at the bolts securing the clutch to the fan. you may have to take the fan off as well. Hope this helps. Good luck.

How far over half? The idea that 220 is overheating is wrong. But I don't think your gauge shows numbers if I recall.
Check your engine driven cooling fan. Look at the fan clutch front and back. Is it moist and dirty? Oil from the inside may have leaked out. With the engine off of course, spin the fan by hand. Does it spin real freely and continue for a second or two or more after you let go. The clutch may be bad. What can happen then is the motor will spin faster than the fan and at time the fan will barely move and that would not draw air through the radiator cooling fins.
Also make sure the radiator and condensor are free from debris (leaves, dirt, birds, cats, etc.)

if you don`t see any coolant on the ground then you could have a bad head gasket that is leaking into the combustion chamber and being burnt,this will also cause a smell.it could be an external leak as well you don`t say how often you have to top up the rad.the leak may be running down the side of the block and being evaporated before it hits the ground and causing the smell.you should have the cooling system pressure tested to see if anything shows up and have a combustion chamber test done on the cooling system to check for a bad head gasket.

check the real value of the temperature sensor with a scan tool. Compare it withe the value in the gauge. It can be a defective temperature sensor or a damaged gauge...or else the car is really overheating

Sounds like the dash module is bad or has a bad ground connection. Have ground checked first--then module. Guages probably okay.

almost certainly the thermostat.....