lafmom beat me to most of my advice but she is right.
1. Control what you can control
That would be emotions, attitude, hustle, effort, work ethic.
2. Be a positive role model
Everything is contagious - bad habits and good habits. If you want others to work like you then make yourself someone they would want to work around.
3. Always assume the right people are looking
This gets back to the old quote about integrity - that is doing the right thing when nobody is looking. Always assume someone who can help you advance is watching you at all times.
4. Golden rule - treat others as you would want to be treated
Before you say something ask yourself "how would I react if someone said that to me?" and "if I say this will it actually help anybody get better?"
5. You can't make others love the game like you do
In fact you can't always get them to respect the game. I tell my guys all the time that I don't expect them to love the game as much as I do. I understand some love other sports more than they do baseball. But they better respect the game. If you run into a person who doesn't love or respect the game then look back at rule #1.