Sometimes, like today, as we were closing, I asked my coworkers if everyone was out of the building. Totally ignored me. I was getting pissed. I , and , I presume they, want to get the Hell outta there and go home.
I was speaking loudly enough. 
There are times when I speak or try to join a conversation, others just ignore me. Not always, but enough to notice. As a result, I keep to myself a lot. I need to stop joining into group work discussions, and stop trying to make people like me.
It's ridiculous at my age. It's wearing,  distressing, and I end up feeling disgusted with myself.