my son is the same.. everyone always comments on how happy he is.. even complete strangers...

as Tanstar said, there is never a problem we can't fix within a minute or two..
in his whole 5 1/2 months of life.. there was has only been a couple of weeks in the beginning where he screamed and cried heaps.. but i put that down to the fact he had 2 parents new to the whole baby thing and had absolutely no idea what the hell they were doing.. lol