Thinking more about it, not very surprising, nor strange. But it did intrigue me for a few seconds.
During morning rush, a woman in her 20s entered the train and stood with her back to me. I was obviously not staring at her smartphone, but did notice she opened Tinder, closed it immediately, then moved to the browser and closed most of the open tabs, some of which were well known porn sites.
As if she was “cleaning” her smartphone from last night activities.
I think I was mostly puzzled by the need to clean. Is it because she does not want to be embarrassed while surfing in the train, or is it that she does not want her co-workers, friends notice it. I guess it is the latter, but I will never know.