incense.. will it cover up the weed smell

Enthused... Holding hits is a really stupid idea. The smoke doesnt dissapear. It coats your lungs in really nice tar... And makes you cough, which would attract attention. To stop most of the smell comming into your room, poke your head out, take a hit, blow it right out, close the window a little so it dont come back in, and carry on doing this. But i definaly would NOT suggest holding in hits, it doesnt get you much higher, but does help kill you quiker.

Go to an aquarium store and get 8' or so of 3/4" or 1" tubing. Just open your window enough to put the tubing through. Exhale through the tube. Get enough tubing so that you don't need to sit right next to the window and make sure you have a few extra feet hanging out so the smoke doesn't blow right back in.