Hi, I had gone through your question and understand your concerns. You should be worried but not too much,because boys usually begin to speak after 2 years. You may easily stimulate him to speak. You can propose him candy or toy when he will tell hello to aunt or uncle. You should develop social skills, because your baby can be introvert. If a person comes to me with speech problems, I would empirically treat and prescribe him B-complex with lysin 5 ml once a day for 1 month unless allergic to it. For improvement memory and speech I advice Nootropil for 1 month. At the same time I write him tests(levels of Vitamin B12, B6,folic acid) to confirm the diagnosis. I prefer to monitor this patient as this is very important. Start on these changes and get back to me in 2 to 3 months. Wish your baby good health.