Yes to networking! And let everyone know you are looking.
Ahhhh, interviewing. All the standard stuff still applies. Appear clean, tidy, engaging, look into the eyes, confident, alert, sincere. Suit, tie, short hairut, no tatoos, are not as important as they used to be (depending on company) but you better look sharp. Give honest answers to best of your ability, never lie about your skills. A better answer is "I'm familiar with it from XX and believe I can learn that skill quickly". Be Professional : I once had a guy tell me he had to end the interview early because his girlfriend was waiting outside in the car.
Show some personality, most interviews are for "fit" as much as ability. And remember you are interviewing them also. Some thoughtful questions will help you and show you are interested. The best of all if you can sit with another engineer doing the same job but that doen't always happen. You might take any job right now but at least you will know what you are getting into.
Canned interview questions will stil come up, "describe a difficult situation at work?", "what is your greatest weakness?" blah blah blah. Get a book on these, study them, and have your answers ready. I still get these questions sometimes when I apply for a job. There is no excuse for tripping up on one of these.
Above all, practice, practice, practice until it is one of your strengths. Remember as a young engineer, you are trying to sell yourself as a hard working, dedicated, flexible, and fast learning employee. That's what every manager wants. And the hard truth is, if you become a really really good interviewer, and have a decent degree, and have some experience at a known company, you will always get a job even if you suck as an engineer.