Comment by epaga

Lean on others around you for feedback - ask a trusted co-worker to be brutally honest with you when he/she gets the impression you are being toxic. Tell them to approach you afterwards and make you aware of it.

Apart from this, here are a few things to watch yourself for:

  * sarcasm & cynicism
  * passive aggressive behavior
  * insults
  * loving proving others wrong and making them look bad
  * loudness / brashness