How many words does your 24 month old say?
My 24 month old son says a few words when he wants to but is not what I would call "talking" yet. Should I worry?
I'm not sure. I know at 2y, they should be speaking 2 word sentences. Some kids are more quiet than others. I'd ask your pediatrician.
you could have him evaluated for FREE at "Early Intervention", that way you'll know if there's a problem or not. good luck.