Rep Power: 0

I add coolant every month or so to the white plastic reservoir tank to keep it from going below the MIN line. I have replaced the radiator, both upper&lower hoses, and the radiator cap with all brand new parts six months ago. First thing I did was "burp" the system when I replaced all these things to get rid of air. I did not replace thermostat as the old original one seemed to work (quick test I did was keeping my hand around the lower hose until car warmed up at which it'd then get hot and untouchable then eventually the fan would come on and off). Engine never overheats and engine temp needle never climbs above normal operating temp. Engine oil normal looking and not milky color. Coolant is blue like new and never discolored. I have driven this car every day and keep having to add coolant every month. Smells like antifreeze after driving sometimes because of it being sprayed on the exhaust manifold's heat shield as you can see in pics below.
1. From my pictures showing coolant residue, where was the coolant most likely to be coming out from?
2. What troubleshooting steps would you do to determine what is causing this to happen?

 
Rep Power: 518

Is coolant being blown out of the overflow reservoir and onto the manifold area?

Is the radiator level going low, while the reservoir level is rising?