Hearing her sound out her own name
Kissing her cheek and hearing her say, “More” (or more precisely, “Mo”)
Being woken up to the singing of “Happy Birthday”
Hearing “Hi. Hi. Hi. Hi. Hi.” accompanied with a wave to the fish every time she passes him
And of course, hearing, though not necessarily knowing whether it’s intentional or not, “Mama, mama, mama, mama”.
<3