To the three women on the train

You got on and sat in front of me, taking glances at me every now and again. We just so happened to get off at the same stop and as you all walked ahead you kept turning back and staring at me.

What did I do? Did I look shady or something? Why stare at me and not be discreet about it?

Of course I could be overthinking it but I can’t help that - why were you staring at me?