Ignorant colleagues

Hello all.

I started working at Sainsbury’s as an Online Assistant on a temp Christmas contract last year, which has since been extended for a few weeks. I have no issue with the job itself - I’m achieving the IPH ok, I’m just fed up with the behaviour of some of my fellow shoppers. There is a group who go around the store mostly grumbling and gossiping. I’ve caught them watching me with their beady eyes and moaning about me because I don’t smile enough (I’m tired and have a resting arseh*le face) and admitting to leaving their trolleys in the way on purpose. I shouldn’t have to worry about bumping into certain colleagues thinking I’m rude because I’m not extroverted like them, and trying to bait me for a reaction when I’m just going around doing customers shopping. I suffer from anxiety which I’m waiting to have CBT for, which is why I chose this job, because I thought I would be able to crack on with the job independently without any politics. Obviously not the case 🙄