If you have a concern about a baby, you should not think autism first. Have the babies hearing and vision checked and discuss your concerns with your doctor.
While I could tell you what I saw with my autistic child when she was a baby, it would be far from diagnostic, and it might do nothing more than to make you worry needlessly.
Google development for.the first three years, and keep a close eye on milestones. If your baby misses some, contact your doctor and act sooner rather than later. Then, enrich your babies environment by reading daily, talking all the time, singing, and having lots.of.face.time with you.
Babies are not usually diagnosed with autism, but babies can have issues that need therapeutic attention that are not aitism, so let your pediatrician help you if you see something that worries you.
M.
EEEK! Only a developmental evaluation by a qualifed professional will help to determine if your child has Autism! Mamapedia, while a nice source for mothering, is NOT a diagnositc tool, so please do not use it that way. Talk to your doctor about vaccines too, there is no evidence whatsoever that vaccines cause autism and if your baby has it, they are the last baby on earth who needs pertussis, mumps, or measils, you can trust me on that.