Based on the tweet "know this makes me a bit sad, but v pleasurable to be spending my birthday quietly edited my book chapter with aid of coffee in cafe. #bliss", categorize the level of joy felt by the author. Select from the following: 0: no joy can be inferred, 1: low amount of joy can be inferred, 2: moderate amount of joy can be inferred, 3: high amount of joy can be inferred.