Be aware all small people that repeating yourself even after you have been acknowledged is the way forwards. It will definately get you what you want. It is not even moderately annoying. At all. Honestly.
eg, 'Mummy, I saw an aeroplane. Mummy, aeroplane. Look Mummy, Aeroplane. Mummy I want an aeroplane. See it. MUMMY... I want an aeroplane. MUMMMYYYYYYYYYY'
'Yes I see it darling...'
'Mummy, look aeroplane. I want one. I want an aeroplane. Mummy see it? Look Mummy' etc, etc, etc
This behaviour will only make your relationship with your parent stronger. They will love it.