Hi I am new to mumsnet. I have an 18 month old boy. He is an only child, so I have no previous experience, and my health visiter says he should be speaking by now. His hearing is fine, andf I know he understands me, but he makes no effort to speak at all. I try not to give into "point and whine" but he just gives up! I am getting Quite worried, and wondered if anyone out there has some tips to encourage him to talk