Your workwear can always represent your personality, however, be mindful of the occasion as well. For example, if you're expected to attend a meeting or a conference, a blazer, a tight skirt or office pants, a pair of heels, and a sleek hairdo will make you look professional. If it's your regular day at work, dressing in smart casual will cause no harm. In some companies, there is a dress-down day, usually at the end of the week, where you can opt for a pair of denim jeans and a T-shirt, or something you will feel more comfortable in.