Yeah, I'd rent one to just get the general idea of how it works: finding the friction point in the clutch, learning to let the clutch out slowly, and timing that right with adding small amounts of gas with the accelerator. No two manual transmissions are created equally of course, but it's like riding a bike. Figure one out, and you'll get the rest with a small learning curve.
You first have to learn how to coast in first and reverse by just slowly letting out the clutch to the friction point and adding no gas (for parking usually). The hardest thing is learning to get out of first without stalling or buring out your clutch. Once you master that, move on to starting while sitting on a hill.
Once you've mastered all that, you can get into the fancy stuff and perfect your shifting technique. It is an art and requires some time to master. You could very easily burn out the clutch on your new car, and that would be bad. If you can't rent one, maybe borrow a friend's old POS car that he doesn't care about anymore.
I was lucky enough to learn on a 1991 BMW M3
