First step that a lot of people have missed is a consult with your state's fish and game agency- you might have seasons and trapping permits to worry about. This isn't the real thing, and should be conducted within the law- it covers you.
Second, you aren't snaring deer in most places. Not legally, and poaching for larger animals usually is more trouble than most people want to be in. If you ever NEED to snare deer, you scale up, try a different type of trap, or learn to hunt.
Third, learn to skin. Buy a few live rabbits and chickens, kill them (throttle or machete), and clean them. If you can't do that, you shouldn't worry about this yet.
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-IronRaven
When a man dare not speak without malice for fear of giving insult, that is when truth starts to die. Truth is the truest freedom.