Professionalism is an essential skill to develop if you want to be considered seriously at the office and climb up the career hierarchy. Simply showing up at work on time and working sincerely for the stipulated number of hours at the office is not enough to be regarded as a professional individual. There are various other things to take care of, starting from your appearance and how you present yourself. You must dress appropriately and conduct yourself well. Then you should abide by the policies and company rules and be respectful of others. You must avoid gossip and office politics. Embracing feedback and being reliable and earnest are also considered a part of professionalism.