Do employers lie or put on an act during interviews?

I went to a job fair today for fabrication work. I was dressed well and looked presentable. It went well, atleast that's what I'm thinking. A guy showed me around and then brought me to another guy who would supposedly be my supervisor, this guy didn't say much before he brought me to the production manager who then conducted the interview. I told him I didn't have much experience and am probably not the best candidate but that I am a very hard worker, I learn quickly, have reliable transportation, show up on time, stay late, and would do whatever they ask of me. He ended up circling sandblaster and put a 1 next to it, which was one of the things I put down for on the application. He then told me that the pay range for that job was 12-14 and asked if I was okay with that (yes), then told me about the employee benefits of the company, then asked if I could work second shift (yes), when I could start (today). Finally he shook my hand and walked me to the secretary, give her my application and mumbled to her something about sandblasting, then shook my hand for the last time saying "we definitely be getting in contact with you."

I'm just wondering if maybe he could've been making me feel good just to get me out of the door. Maybe I'm just paranoid but it did sound good to the hear. I really need this job with all my prior screw ups. Has anybody had any similar situations or advice?