Tip #1: fill the frame
Tip #2: use the foreground & background
Tip #3: use flattering light
Tip #4: get in close

   A headshot is a photographic technique where the focus of the photograph is a person's face. A headshot is a specific type of portrait. A headshot is an image that portrays a person as he is, however simple or stylized the image might be. In contrast to the head shot, an environmental portrait would portray a person with elements of his life such as his work, interests, etc. Head shot photographs are often used for identification purposes. They are generally front-on (facing straight at the camera) photographs, with the face being in the centre of the picture and containing minimal or no surroundings. The facial expression is usually neutral and often require the temporary removal of facial accessories such as glasses.
Head shot photographs are used as passport photos, mug shots and on other forms of photo identification, such as driver's licences, student cards, security cards and at times on credit cards.
   The Head and Shoulders formation is one of the most well known reversal patterns. On the technical analysis chart, when a price trend is in the process of reversal either from a bullish or bearish trend, a characteristic pattern takes shape and is recognized as reversal formation.

   A snapshot is spontaneous and quick, most often without artistic or journalistic intent. As for a portrait, artistic representation of a person, in which the face and its expression is predominant. The intent is to display the likeness, personality, and even the mood of the person.
   The quote is “the name of the game is to fill the frame.” – Rick Sammon. Your mid fixes its gaze, and only begins to focus on the detail. This is how, as photographers, we should use our tools to draw the viewer's eye, emotions, and perception. As a photographer, we should use this concept to get close and fill the frame. Being up close and personal to a subject brings the viewer in. This technique allows us to lean forward and examine all the small details that make up the wondrous object before us. Filling the frame offers a sense of completeness, clarity, inclusion, and comfort. We essentially “dive in,” and experience the true essence of what the subject has to offer. This theory of “to fill the frame” can be applied to any and all forms of photography that you run into. Landscape, macro, portrait, architecture, product, wedding, lifestyle… You should always “fill the frame.”
    The 3/4 shot concept came again from film making where the shot of the character goes from his knees up to his head. It basically means, show me 75% of the model.
     A profile shot is a photo of you from the side. It's usually of your face so people can get a clearer look of your jawline/nose/etc.
   Close-up tightly frames a person or an object. Close-ups are one of the standard shots used regularly with medium shots and long shots. Close-ups display the most detail, but they do not include the broader scene. Moving in to a close-up or away from a close-up is a common type of zooming.

HOW TO DESCRIBE IMAGE TONAL VALUES 
 SHADOW- area where direct light from a light source cannot reach due to obstruction by an object
 MIDT-ONE- the colors in between
 HIGHLIGHT- highest area of an image
 EXPOSURE- the amount of light allowed to fall on each area
 CONTRAST- the difference in luminance that makes an object (or representation in an image) distinguishable

HOW TO DESCRIBE LIGHTING TONAL VALUES 
 HIGH KEY- aims to reduce the lighting ratio present in the scene
 LOW KEY-term used in describing paintings or photographs
 SOFT SHADOWS- not too dark area of an object
 HARD SHADOWS- darker area of on object
 HARD LIGHT- when the light source is large relative to the subject
 SOFT LIGHT- light that tends to "wrap" around objects, casting diffuse shadows with soft edges; when a light source is large relative to the subject
 COMPOSITION-arrangement of visual elements
 FOREGROUND- elements of an image which lie closest to the picture plane
 BACKGROUND- part of the picture that depicts scenery to the rear
 SUBJECT- the main topic
 FRAME (FILLING THE FRAME)- technique used to focus the viewer's attention upon the subject