Sensei Brian went over a number of things tonight:
Parrying An Attack and Countering With Seio-Nage
This drill has the uke pushing on the tori's shoulder. As the tori you parry the push with your hand and perform seio-nage. The key is to not block the push or grab the uke's arm - parry out of the way and cup it so that the uke's own momentum carries him through the throw.
Manipulating Balance For A Backward Throw
This example was from a blocked hip throw attempt. The tori steps in for a hip throw and the uke blocks by sticking out his hips and stiffening up. As the tori you pull down on your collar grip behind the uke's center of balance, pulling your elbow straight down toward the uke's foot. This places the majority of his weight on the heel of his foot, then you step around and sweep.
Manipulating Balance For A Forward Throw
This example starts with both tori and uke at a 90° angle stance. As tori you step in to attack in the same manner as the previous backward throw attack. The uke, thinking he knows what's coming this time, slightly advances forward to stop you. With your collar grip, you pull down your elbow toward the uke's foot to place the majority of their weight on it then step in to attack with uchi-mata or tai-otoshi. (since their balance will now be broken to the front)
A Rollover To A Pin
This example starts with the tori in a sitting position and the uke on his knees ready to attack. As the uke advances toward you take a double collar grip as you push out both of their knees. With your left arm - grab the uke's belt and put your elbow behind their head to control it. With your right arm - hook under the uke's left arm and grab the wrist of your left arm. From here turn the uke over to your left side, keeping control of the arm, and apply yoko-shiho-gatame. (or tate-shiho-gatame, juji-gatame, etc.)
Note: The key thing to remember is to attack when the uke is coming toward you, not when they're already on top of you. This is so that you can use their own momentum against them. Always keep your head and shoulders off the mat too.
Goshi-Jitsu Wrist Lock Drill
This drill starts with tori and uke standing in front of each with their hands at chest level and touching. The tori applies the first wrist lock by turning the hand clockwise so that the thumb is on the uke's knuckles. Continue to twist using your core strength, not just your arms, until the lock is applied. For the second wrist lock your turn your hands in a counter clockwise motion so that your thumb is on the uke's knuckles and continue turning (again - using your core muscles, not just your arms) until the lock is applied.
Goshin-Jitsu Wrist Lock - Practical Use
This drill starts the same way as the previous one but the uke moves one of his hands backward while the tori applies the wrist lock to the other one. The uke is now facing you sideways - transfer the lock to your other hand then press down on the uke's elbow forcing him in the direction between his feet, he'll have to take a step. Continue in this motion until the uke is forced to the ground then apply an arm bar.