- Press Ahead [C1]:
- Designated dancers move one position forward.
- Press Back [C1V]:
- Designated dancers move one position backward.
    Press Back is typically only used as a gimmick.
- Press In|Out|Right|Left [C2]:
- As one movement, designated dancers move one position forward and one position
  toward the given direction.
Notes:
- 
Non-designated dancers do not move or adjust in any manner.
- 
Do not change your facing direction during this call.
- 
'Position' in terms of this definition refers to a spot that could be
    occupied by a dancer.  Within a 2 x 4 there are eight positions.  A
    Squared Set, Butterfly, or "O" is a 16-Matrix (4 x 4)
    formation, and one position refers to an adjacent spot within that
    rectangular grid.
- 
The direction can be In, Out, Right, or Left.  In and
    Out are relative to the Center of the Set.
| |   |  |   |  | before Press Right
 |  | after 
 | 
 | |   |  |   |  | before Press Left
 |  | after 
 | 
 | 
The following examples illustrate the differences among the similar calls
  Extend, 1/2 Press Ahead, and Step Thru.
| |   |  | This is the starting formation for each of the following:
 |  |  |  |   |  |   |  |   |  | after Extend
 |  | after 1/2 Press Ahead
 |  | after Step Thru
 | 
 | 
Often callers misuse the term Extend when they mean to use 
  Press Ahead or 1/2 Press Ahead.
| |   |  | This is the starting formation for each of the following:
 |  |  |  |   |  |   |  | after As Couples Extend
 |  | after 1/2 Press Ahead
 | 
 | 
Curve direction [C4] (Dave Hodson 1985):
 As one movement, Press direction while individually turning toward that direction.
  Direction can be In, Out, Left, or Right and is relative to the Center of the Set.
Tip Toe [C4] (Lee Kopman 1980):
 Designated dancers Press Ahead while holding onto the dancer in their 
  partner's position, dragging that dancer with them.
 See also direction Loop n [C2]
 and Truck [C2].