Most people don't want to help anymore either. 30 degrees (-1c) outside and I saw a guy stuck in the parking lot near Walmart, week before Christmas. I pull over and he asks if I could jump his battery to get him going. I had a battery jump in the back so I didn't even have to raise my hood, took ~1 minute of my time. He was a young man who told me he had been stuck there for 2 hours. There are hundreds of fn cars coming and going from Walmart and such. Not a single fuck was given because everyone is afraid of everyone. They think it could be a trap before thinking he is trapped.
Positive to positive(red), negative to negative(black). Never touch the jumper cables together, the amperage will do more than wake you up. Let the car run for a few seconds, then start the other car. If it were the battery it should pull from the non dead battery and start up. Then unplug both without allowing them to touch still.. and your good.
If the car is manual you can jump it without needing another car or cables. Get the car rolling by pushing it or get yourself on a hill rolling in neutral, clutch in and throw yourself straight into second gear while giving it gas, it will get the engine jumped and running.
In both scenarios let the car run for a little bit so the alternator can charge the battery back up (assuming you just left the lights on and it died). If the battery is actually dead you can stop by an auto store and they will test it for free.