it should be at your nose [off of skates]
No it is considered as a high stick.
Your hockey stick should be just above your belly button.
The size of a stick should be 15cm wide
Your stick cannot got above your shoulder height.
It is the hockey stick and the puck if you want to do it you should
Yes. A hockey goalie can get the same penalties as a skater gets.
Yes, you should use curved hockey stick as it makes passing, shooting, and stick handling better. There are two types of curves(right and left) and you should chose the stick which corresponds with the way you shoot. If this is your first hockey stick and you don't know which way you shoot yet, then a stick with a non-curved blade will do short-term.
Field Hockey Sticks vary in size depending on the height of the person. If you are asking about how long it should be for an individual to play hockey properly... the answer is the stick handle end should come up to about your waist.
Use cloth tape to tape your field hockey stick. See related links, below, for more information on caring for your field hockey stick.