‘Hello, sweetie!’
The first words we ever hear River speak to the Doctor, heard first in Silence in the Library.

‘Like I сказал(-а) on the dance floor, Ты might want to find something to hang on to!’
River, escaping from The Byzantium in The Time of Angels

‘If Ты like… but where's the fun in that?’
River, replying to the Doctor’s Вопрос – can he trust her? - in Flesh and Stone

‘Right, then. I have questions, but number one is this: what in the name of sanity have Ты got on your head?’
River, spotting the Doctor’s fez in The Big Bang

‘Rule one: the Doctor lies!’
River being...