It's completely safe and easy if you are a willing hitchhiker with excitement. I have such experience s that's why I am expressing it to the world. I did my first hitchhiking trip in January last year. I went out without any plan and with almost no money in pocket(though I had my card for emergency) but I had a bombastic excitement within. I still remember how insanely I was standing in the mid of the highway at my hometown to stop the truck-drivers. Many truck drivers laughed and many ignored, but finally one had stopped his truck to let me in who was going to Delhi. I was never excited like this when I put my rucksack in the truck and was about to get in. And this is how it started as I completed 500 km(entire day)from Palanpur to Jaipur in the truck, with a stranger. So don't think much, just leave! Everything else will be seen.
Good Luck!!