The first thing I'd do is change that: rather than getting the user to type out their action in full, prompt them for a number: 0 for Scissor, 1 for Rock, 2 for Paper.
That makes life a lot easier for them: they don't have to be able to type accurately, and easier for you because it's easier to verify what is happening: you just add a test for value entered is a valid number. If you work with strings, you make life difficult for yourself as "scissor" is not the same string as "Scissor, "SCISSOR", or any other combination of upper and lower case characters.
Now you can use numbers most of the time. First check if they are the same and if so, print that it's a draw.
Then check who wins:
Paper beats Rock, Rock beats Scissor, Scissor beats paper
Or using numbers:
2 beats 1, 1 beats 0, 0 beats 2
So you could just add one to user 2 input modulo 3 and compare that to the user 1 input: if they are the same, user1 wins. If not, user 2 does!
think about it: it's pretty obvious when you get your head around it!
Simpler tests, shorter, easier code.