Notice the end of the dipstick opposite the handle. The markings may be notches, holes, lines, or letters. Place the dipstick into the tube from which it was removed being sure to insert it completely. Remove it again and check the level on the dipstick. If the oil is low, add only enough oil to bring the level up to the full mark.
Oil is added to the engine by removing the screw cap on the top of the engine.
There is usually an illustration on the cap to help you find it, but again it should be fairly obvious. Add oil a little at a time, checking after each addition. Check the oil a final time to insure that it is indeed full, then fully reinsert the dipstick. Transmission fluid should be free from debris and have a pinkish color. It should not have a burnt smell.