We have been practicing elimination communication since Renzo was about 2 months old . Whenever we know that he's pooping, we sit him on his potty chair (usually still with clothes on) and say "poo poo" until he finish. After that, we would change his diapers.
Today was a breakthrough. I took him to the sink upon waking up, removed his diapers and started saying "wish-wish" and "wiwi" to him while he was facing the mirror... And guess what happened next? He peed! We're so happy... It was a first!