Let the manager know that in order to get respect they must give respect.
One way to not intimidate your manager is to try not to have anger in your eyes when communicating. Don't huff and puff because you disagree with what is being said. Let your manager have his/her say, then calmly present your opinion.
It's okay to disagree with your manager, just let them know that you will do it their way even though you disagree with it. Also, don't be afraid to say "I told you so" when things don't turn out the way they should have because following the right way they wanted to do things their way.
Make sure that whenever you're speaking to your supervisor/manager, to make eye contact. This shows that you're honest with whatever you're saying and lets them know that just because they are management you do not fear them.
Let your manager know that you are working "with" them as a team player to enhance the overall performance of the company. Take the initiative to make suggestions on projects that you will be responsible for. Even if you use an idea that your manage comes up with, be humble enough to say that it was "their" idea, you just added a few things and implemented them.
Don't let yourself be intimidated by your manager because you don't want to intimidate them. Don't be reluctant to share your own views just because they don't reflect those of your managers. Any good manager is open to new ideas as long as it benefits the company positively.
Talk and get to know your manager, personally, preferably at lunch time. Try to build a personal but professional only relationship. Once you and your manager have an agreeable working relationship, everything will go a lot smoother.
- Don't be pressured into doing something you don't agree with.