for second gear, u always use the clutch. I could bo a roll-on or bounce it, but the clutch really is the more predictable way of getting the front end off the ground.
Go somewhere between 25-40..... pull the clutch in.... blip the throttle to say 4k, and right as the rpm peak and barely start to some down, Give it a rev from to 8-9k and as you are reving, pop the clutch out(i say to blip and then rev, so eventually you can just listen and feel the revs this way, rather than looking at the tach)... and seriously POP it out, not just a realease.
It will come right up and just keep your hand rather still and then once you are up and free flying, it's all about throttle control from then on... try and roll on the throttle back and forth slightly in the powerband and keep the bike up at the balance point(this is where all the practie is). You will know you are at that point when the bike feels really light. It will scare you at first, but when you know you are there, you are there.
always let off the throttle SLOOOOW when you are comming down. You dont want to damage those forks and seals. Be safe and wear your protection.