Punctuality is such a minor thing, but many people look at it as an indicator of how seriously you take your job. Tardiness is especially bothersome if others rely on you in order to get their own work done (hello, editorial assistants). A few minutes late here or there isn't likely to be an issue, especially in an industry like publishing, where flex time is common. But even with flex time, coming in at 10:30 is pushing it. And you should always be punctual for meetings. Lateness is often perceived as lack of respect for the job and for your coworkers.
2. personal phone and internet use
A personal phone call here or there is fine. Even checking eBay for the status of your bid isn't a problem. But it is an issue if every time your boss walks by your desk you're doing something other than work. And don't think she doesn't notice you talking in a hushed voice or quickly closing that browser window. If all she sees is you doing your own thing, she's going to wonder if you're getting your work done.
Are there any other faux pas you would add to this list?
Corinna vanGerwen is a freelance editor and writer. She has worked as senior editor at Style at Home, senior design editor at Cottage Life and is the former Canadian Director of Ed2010. She has also held the position of operations manager at a boutique PR agency, where she handled strategic planning and daily operations.