Get permission before going onto private property or to be in a cemetery after hours.
Reschedule your ghost hunt if it is going to snow, rain, or if it is foggy. Also check the pollen count. Moisture and pollen can cause anomalies in photos.
If you have a large group break up into pairs or smaller groups.
Carry walkie talkies or cell phones. You never know when you might need them.
Don't use drugs or alcohol before or during an investigation or hunt.
Don't smoke near where you will be investigating. Make a designated spot for smoking. You don't want to photograph smoke and think it is an ecto mist or spirit.
When trying to record evps never whisper. Talk in a normal voice. You won't scare the ghosts if you talk. And you don't want to mistake a human whisper for a spirit.
Always use new tapes in the recorder.
Have extra batteries and make sure all equipment is fully charged.
Wear a watch so you can note times of events.
Wear clothing suited for the weather and always wear comfortable shoes.
Don't wear jackets with strings. The strings could get in the way when taking photos and be mistaken for something paranormal, especially if you are shooting downward.
Don't wear perfume or cologne while ghost hunting. If using an insect repellent make sure it is unscented. Some have noticed scents or smells when there is reported ghost activity. Perfumes may mask these scents.
Tie back long hair. When a piece of hair gets in front of the camera lens it will look like a vortex.
Remove camera straps or be aware where they are when taking a photo. Many times straps get in the picture and can be mistaken for a vortex, ecto, moving orb and ghosts.
Look for things in the way like spiderwebs, wire, ropes, tree limbs. They can appear on photos as something paranormal when they are in close range of the camera lens.
Always clean camera lenses. Lint, dust specks, smudges and fingerprints can look like ecto mist, orbs, and other ghostly anomalies.
Be aware of the temperature when photographing outdoors or in an unheated building. Hold your breath while taking a photo and for several seconds afterward. Remember, if you can see it so can the camera.
Always know where your fingers are when taking photos. A thumb or finger can appear to be a ghost when caught in front of the lens. It is a big let down to find out it's not paranormal after all.
Research the location. If you are going ghost hunting after dark, you should check it out during daylight hours. Make note of any dangers such as holes, broken glass, loose boards etc.
Be objective of your findings. Rule out any natural causes that may have caused anomalies such as insects, lights in the distance, spider webs, reflections.