Not 'looking like I was listening in a meeting'- I was actually listening and was able to recite information but apparently that wasn't good enough!
For 'not having a degree'- I was a Saturday girl in a shop, I was 16 at the time. 
For 'being tired'-I had a baby at home and was getting up at 4am to look after them so wasn't feeling well rested but was expected to pretend I was energetic
.