3 quick tips:
The flag should be raised and lowered by hand on a flagpole. While raising it, unfurl it and hoist it quickly to the peak of the pole. It should be lowered slowly and ceremoniously.
When displaying the flag as a decal on the right side of a vehicle (bus, truck, plane, etc.), the blue field should be on the right.
When the flag is worn as a patch on the sleeve, the blue field should always be forward and the stripes trailing behind (as if the person is carrying it).
When buying your flag always look for the FMAA label to know it was made in America.