Wondering at a coffee shop

Just love to stay at the coffee shop for hours and hours and don't feel it is boring. I can concentrate and look at every stranger around me whenever I feel like. No body cares what i am doing and neither do I care about anything else. Sometimes, the music in the coffee shop drags me into moody thoughts, sometimes it is merely a background, other times i almost want to dance with it. my fingers can dance on the keyboard while every now and then I am distracted by a guy who was just walking into the place, or A girl who was just coming out of the toilet companied with the sounds with the plastic door chain curtain, everything seem all have their own rhythms and work very well with each other. the shop assistants are cooking, they look quite busy with demands from the customers, but they don't care my existence although i have been here for about 7 hours, amazing. I have got to go, my shoulders are complaining.