Force Focus: Force focus makes your opponent vulnerable to all basic force powers it is a grey/blue fog that appears around your opponent once you stare at them long enough, depending on their force block level the amount of time required to gain force focus varies.
Force Block: Force block does two things. The first it alters the amount of time required for your opponent to force focus you (the higher your force block the longer it takes). Second it increases the amount of FP you can use before you are vulnerable to force powers. At level 1 Force block as long as your are above 95 FP you are invulnerable to force powers as long as you are not force focused, at level 2 it is 80 FP, at level 3 it is 50 FP. These are known as FP levels.
Grip (Sith only): Slows down movement and eventually causes saber to turn off at level 1. Completely stops movement and closes saber instantaneously at level 2. Level 3 is same as level 2 but with increased damage and the ability to move the enemy about. No damage is done with Force Focus damage only occurs if they are below their FP level. Grip also disables your opponent's FP regen.
Synergy Powers: Synergy powers cannot be used with Force Focus and only work if the opponent is below their FP level.
Grip Superpush (Synergy Power): Requires grip 3 and push 3. While unarmed Grip an opponent then push them. Can be done while armed as well but requires you to lift the opponent into the air and does less damage.
Grip Techniques:
Grip Slash: Grip an opponent as soon as the grip has initiated let go and slash them with your saber, the grip should have turned of their saber leaving them defenceless.
Delayed Grip: If your opponent has good timing and pushes you as soon as you start the grip, or has bad timing and you need to drain his force power simply start activating grip on him and once it is almost completely activated move your crosshair off him, you will see the hand icon slowly start to, open put your crosshair back onto him to make the hand icon start to close again, keep taking it on and off him till he tries to push when he does put it back on him and activate the grip (push has a cooldown so he won't be able to use it again instantly) and then use grip slash or throw him around. Against someone with bad timing though you can just keep putting on and off them to force them to consecutively push causing them to waste FP.
Defending vs Push/Pull: With Grip 3 once you have gripped your opponent start quickly turning your mouse to throw them around, this will make it harder for them to aim thus harder for them to push you.
Grip Pull/Push: A lot of opponents will charge at you when you try to activate grip if they do this it gives you the opportunity to push/pull them.
Activating grip: While grip can be activated at any time, as long as you have force focus or your opponent is below their FP level, the 2 best times are when your opponent is extremely low on FP (that way they may not even be able to push/pull out of it) or when they are on the ground (that way they cannot attack you while you activate it.)