'Of Mice and Men'- How does the author make it clear that George finds it difficult to kill Lennie?

The author makes it clear that George finds it hard to kill Lennie because of his actions towards his life long friend. Firstly, he makes Lennie take of his hat so he can, 1) see were to shoot him and 2) as a sign of respect. "Take off your hat Lennie, the air feels fine." The George tells him one last time the about their dream, the dream that has kept George sane as he embarks on …

…how hard it must have been to shoot him. This is the main reason how the author makes it clear that George finds it difficult to kill Lennie. In conclusion, its easy to know how the author make it clear that George finds it difficult to kill Lennie as George shows us by his body language and what he does to try and trick Lennie into looking away as he kills his last remaining family.