First time buying a car I need help?

I brought a car from someone private (friend) but he still didn't give me the title. I feel dumb because this is my first time buying a car. So I decided to go to the place where he brought the car and the dealership asked for my insurance and gave me a 30 day temporary tag. Can I get in trouble for getting temporary tags? And how can I get a title for the car?

First time buying a car I need help?
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