Clone Wars Rulebook wrote:
Move Faster: A character can spend 1 Force point to move 2 extra squares on its turn. This extra distance
is added onto the character’s regular move. Count Dooku, for example, can use this option to move 8
squares and attack or move 14 squares without attacking. He can’t, however, move 6 squares, attack, and
then spend 1 Force point to move another 2 squares.
FAQ wrote:
Move Faster
Q: When exactly does a character spend Force points to move an extra 2 squares? The timing could
be important if an enemy with Force Absorb or Force Defense wants to cancel this extra movement.
A: A character spends Force points to move faster immediately before the start of its movement. In
other words, it do?s not move 6 squares and then spend a Force point to move 2 more; before moving,
it spends a Force point to gain the ability to move 8 squares.
The rulebook explicitly states "on it's turn", but the FAQ is not clear. Good question...