Don't be this guy:
Or this guy:
...oh...and use the shears as little as possible. Just because you need to remove it, doesn't mean you need to cut it off. Unless you're in a true life threatening situation, taking the 15-20 seconds to remove a piece of clothing properly (if possible) will go a long way in maintaining a good rapport with your patient.
...and pass on all the star of life stickers, apparel, and personal medical kits. Most people go through that phase when they're fresh out of school and ready to take on the world. I'll admit, I did a bit at first, but quickly realized it made me look foolish and didn't win me points with my peers. So save yourself some time and money and don't try and show the whole world you're an EMT
Good luck and I wish you the best. There are lots of great experience to be had, especially if you plan on moving into emergency services or healthcare. Remember: Once school is over, the learning has only just begun. Keep learning and don't be complacent. Know why you do or don't do certain things. Be a healthcare professional not a protocol monkey. Knowledge is power and the key to being a great EMT rather than a mediocre one.