My 18 months old doesn't talk either. And sometimes I have to call him 5 times to look at me or come to me but I read that's because the information sometimes just doesn't come straight away to their brain and near more time. I wouldn't worry too much at this stage. In my family kids started talking after 2, but then they could not stop ^^
@kaguirre, they’re easily distracted at that age. It takes some time to get their attention. My two year old doesn’t always look at me when i call him because he’s ignoring me lol. Definitely bring it up to his doctor at a check up. But no need to worry