"You say things and people listen. I'm not like that"
"Mr. Anderson thinks that everything inside of him is worthless and embarrassing. Isn't that right, Todd? And that's your worse fear."
I love Todd's arc and his character. It can be extremely difficult for some to find their voice and believe that said voice is worth sharing.
It also seems as though Todd grew up in his brother's shadow. Being told by his parents and teachers, it's not Todd's voice they want. They wants Jeff's. This would only add to the difficulty of speaking up, especially for himself.
Then came Neil, Mr. Keating, and the dead poets.
One thing I always appreciated with this film is that Todd doesn't have this one moment of breaking out of his shell and then he's suddenly confident and outspoken.
It's takes time and support. Neil and Mr. Keating are frequently coaxing Todd out of his shell.
For example the scene of Neil convincing Todd to go to the dps meeting, the "No" scene in the dorm between Todd and Neil, Neil getting Todd to yell the lines at the dock, Mr. Keating clocked Todd and inner thoughts and feelings immediately and actively showed how much he believed in Todd, they both challenged Todd more than once.
Then the dead poets society is a group of people who are all incredibly supportive of one another. They are friends who root for you , they celebrate your wins, they sit with you and listen when it gets bad. For Todd specifically I think this helped a lot with making him feel comfortable and willing to slowly open up to them. Their reaction to Todd's poem he makes up on the spot and in a deleted scene Todd reads aloud an original poem for the poets and I loved to see their reaction when it's finished. They are all so supportive and clearly proud of Todd, standing and cheering for him.
All this to say I love to see how this slowly builds throughout the film.