Being a proud teacher means refusing to acknowledge that anything is wrong, trying to hide the fact that your year sevens are running rings around you, using phrases like: 'I think I'm making progress', instead of: 'I'm not quite good enough yet', pretending to be full of energy when really you've just drunk two cans of red bull, hoping everyone spends time looking at the wonderful displays your classes have made whilst ignoring the fact that they haven't really done any actual work and saying that things are going okay when talking to other NQTs when in actual fact you want to scream.

In short: trying to hide any sign of possible weakness in front of other staff.