Night life

Hey guys, I arrived yesterday (Thursday) some friends back at home told me about Morrisons, so I went check it out, place as full to the top. Today I returned thinking that if Thursday was that full, today(Friday) was even more, but for my suprise it’s almost empty. Can you tell if this is normal? I don’t understand how a club is full on a Thursday but empty on the Friday next day. Thank you.