anjula says:

Starting a new job can be challenging. However, you sound like you really want to get along with your colleagues; but being in this situation has triggered something from your past. I wonder if your childhood experiences at school shaped how you approach new situations. Perhaps feeling left out as a child developed into a pattern of waiting for others to talk to you – and you avoided rejection by not being the instigator? Sadly, this way of operating is often misinterpreted by other people – and they may think that you want to be left alone. But left unchallenged, continuing like this could also develop into social anxiety. The good news is that you can take positive action right away. So fake it to make it. Walk into the office, smile and say good morning to people. Don’t wait – do! Offer to do the coffee run. The first step is often the hardest; but just changing the way you behave changes the way you feel. Before long, you’ll be part of the team.