Professional Attire
You never get a second chance to make a first impression. In addition to your engaging personal demeanor, your attire matters in career interactions such as networking events, interviews and on the job. You do not need to spend a great deal of money on an elaborate career wardrobe, but you will need to dress professionally. That will likely mean wearing different clothing to an interview or during an internship, for example, than you would wear in your daily life as a student.
Suits or coordinated jackets and slacks for both men and women or jackets and skirts for women are still the clothing of choice for interviews, formal networking, dinners and organizational events. In some workplaces, staff members wear suits or dresses every day, while in others workplaces, the norm is "business casual," which does not require a suit but is still professional. In any workplace, consider modestly cut shirts, sweaters, trousers and skirts.
Sometimes students point out that the company at which they want to work allows employees to wear polo shirts and jeans, and wonder if they can dress informally for an interview, shadowing experience or meeting. Unless you are instructed to the contrary by a member of the organization, the best advice is to err on the side of formality to show the staff that you take the encounter with them seriously enough to be in your most professional mode.