(Hello Bagpuss, hope you don't mind me almost pinching your name

)
In answer to the question, I HATE being told I'm doing well when I know I'm not. It feels really patronising, even when you know it's not meant to be.
For me, a combination of friendly bullying and inane chatter would probably be best, with the occasional "hey, that was good" when I actually did achieve something of note.