get the bird to a vet now. parakeets are my cup of tee although i dont have any know. and this is not normal. they are not quiet birds
although it not unusual for them not to play with toys it is not normal for it to just sitt there
is it fethers fluffed up? is there a green or other color stain left on the bird when it poop? that be diahareea.
keep bird warm put vitamins in water
call the vet and get that bird in asp
parakeets are fragile bird and it not pretaining to you , let me say that , but for anyone never having a bird before please parakeets are fragile and for experienced bird people
i beleieve you bird is ill
please take to vet
the fact it quiet and just stands ther has me concerned. take to vet