Playing this familiar tune without a capo is a rewarding challenge. It will open new things for both rhythm and lead. Most of this tune should be played in second position. That means your first finger should stay on the second fret usually. Second finger will cover notes on the third fret, third finger will cover notes on the fourth fret, and your pinky will cover notes on the fifth fret. Excluding the licks, the only time you need to shift is in the last measure of each section. In that case, just make that 1 fret shift backwards while an open string is ringing.
This tune is tough, so use the difficulty slider if you need to. Once you get the hang of it, check out those licks. There's enough to make sure you are always able to keep this tune fresh and interesting. You can switch out a lot of licks to create totally new versions of this tune!