lol press e red smite autoattack predict the dashes or flashes with q to kill anyone 1v1

you don't "gank you clean up enemy laners

you can cancel your passive auto with your meditate to get 1 more auto (this takes practice)
you can predict flashes and dashes with your alpha(this takes practice)
Great yi ganks are when the enemy laner is pushed to your laners turret thats when you gank (red smite auto, q if they flash)

rush skirmisher boots pre 6 bloodrazor into t2 boots then bork then choose guinsos maw or deadmans (you can get more than 1)

if you cant carry your game and win the game by 25-30 mins and it goes into 40 mins
just hope your team can do something and get barons/elders.
but if a fight does breakdown you have to think to either go on the adc/apc or take out the tanks this is very important you may lose the game if you decide to kill the tanks when you should have killed the caitlyn

rush skirmisher boots pre 6 bloodrazor into t2 boots then bork then choose guinsos maw or deadmans (you can get more than 1)