Passion
Energy
Enthusiasm
I'm going to be real. To do this job correctly, it will be the hardest job you've ever had to do! Between demands of pacing guides,standardized testing, and just general correcting, it hard work.
Dismiss the idea of I can't smile for 2 months, need to be a drill sergeant, and won't give an A or 4 out first marking period. Set high academic and behavior expectations and follow through. Kids will see right through you if you don't.
On the flip side. Let your kids in. Show them you're human. Laugh with them. Hold them accountable for expectations.
Talk about your passions. Be passionate about the concepts you teach.
Your attitude is infectious. That's a little trade secret. Even if you don't love a subject, act like you do.