Props:

Props used in a horror film can vary from a weapon such as a knife, to a spiritual artefact. An example of making use of props to highlight the genre can be a bloodly knife used in a slasher horror such as 'Scream'. These props may not only be used to kill someone, but can also play a role in iconography and a way of foreshadowing an event.. Other props such as crosses, spiritual artefacts and bibles can would be used in a film which includes someone becoming possessed.
Setting:

A typical location where the horror is based would be in a abandoned buildings, a forest, dark mansions, cabins in the woods etc. This is due to it being able to portray the feeling of isolation. If the area were busy and full of people, this would cause the audience to feel safer and less scared. All of these areas are perfect for creating a suspenseful and tense atmosphere. Also, filming in darkness in these places makes it more tense and scary due to limited vision.
Costume and makeup:

These are important aspects to think about in the making of a horror film as it can determine what caharcter the audience thinks in the protagonist and antagonist. The costumes can show a stereotypical version of a character. For example; a little girl dressed up in a pink dress, pig-tails, frilly socks would portray her as the protagonist. The antagonist can be identified by the audience immediately according to their appearance. For example, in the film 'Scream', the murderer is dressed in all black with a scary mask.
Make-up can be used in different ways in a horror film. It can be used to make the antagonist scarier or used for 'battle scars' on the protagonist.
Lighting:

The lighting in horror films is usually dark in order to create a scarier environment and to create more successful jump-scares. A character could be walking alone in the woods at night time and the villan jumps out at them from behind a tree. Due to the audience having a lack of vision, it can make them jummp eve more. It is also a very common fear for someone someone to be scared of the dark. This can be because of the 'unknown' and not knowing who/what is there. If the scene would have been filmed in daylight, it would not have the same effect on the audience as it would at night or in the dark.
Facial expressions and body language:

Using facial expressions and body language shows the fear of the character in the scene. This is important and it is the only way the audience is going to believe the character a truly terrified with what is occurring. Their body language and movement reflects their shock, fear and desperation.
Iconography:
These are elements that represent the genre. For example, the colour red represents blood, gore and anger. The colour black represents death and evil. Props, costumes, settings and credits can all show iconography such as bloody knives.
Visual effects:
These are used to scare the audience more by getting them to believe that its real and that it isn't just actors with fake blood and props. Digital effects are sometimes used when the effects could not be accomplished on screen without the use of some "smoke and mirrors". For example, in a slasher and gory film, body parts being cut and limbs being detached from the body will be shown. But to make it look realistic digital effects are used. The traditional visual effects will be used to such as fake blood is still used.