Hoods method works, but I recommend insufflating liquid solutions over dry powders due to the risks of inhalation of fine powders into the respiratory tract.
I usually do this with methadone, using a small amount of saline, I'll run it through a micron a few times and then insufflate it and get peak effects in ~7 minutes.
It's also done with other solutions/drugs, I'm sorry, which drug were you discussing in that other thread?
It's MOST important to SOFTLY inhale through your nose when snorting, its a rookie move to snort the living daylights out of a powder or solution, the key is to insufflate it as slowly as possible, minimizing any drip. The whole point is to get the drugs into the epithelial membranes of your nose, and no further.