what do you do guys when you have a dream and people don~t really understand you?

When, in your dream, you can't make yourself understood to others? Sounds like you're facing some confusion in life, maybe having a hard time understanding something important, and it's showing up in your dreams.

what do you do when you ask a question and people don't really understand it?

Dreams are generally symbology and archetypes which are unique to us through our culture, experiences, and upbringing.

For example. When I dream of snakes, it means that I have a 'snake in the midst'. Generally a person who wishes to do me harm.

However, others have the interpretation of snakes as rebirth.

The snake, technically, is symbolic of both.

Dreams are from our unconscious, so really, it is our own private reality. Before going forth and trying to share these dreams, perhaps you should study some on your own. Carl Jung and Edgar Cayce studied dreams in depth. There are resources in both books and on the internet. By understanding first yourself, you will be able to better convey the context of your dreams to others.