Correct way has been mentioned to first deploy the stand to the ground and make certain that both feet of the stand are in contact with the ground - which should be firm and level. I will dismount my 900 lb Goldwing with the side stand deployed first and the bike resting on it. Then I can deploy the centre stand to the ground on the near-side and rock the bike upright to have the other leg of the stand contact the ground, knowing then that the bike is upright and not leaning away from me. (I'm nowhere near its 900 lbs, so getting it leaned away from me would be courting disaster!) The Wing has a rearward handhold for the right hand, while the left is on the left grip. Then stepping down on the centre stand, using it as a lever, slight upwards with the right and backwards pressure with the left hand will raise the 900 lbs onto the stand (unless its pointing down-hill). The main force needed is to PRESS on the stand, not to try lifting the bike from the rear. The same technique is used for all centre stand bikes, except with lighter bikes, you can actually lift many of them. Some smaller bikes also can be rocked onto their stand while both hands grasp the handlebar grips - I do this on the SuperCub. Dismounting older, smaller bikes is a matter of careful balance as they often do not have a side stand to deploy. My Superhawk (350 lbs) is like that, and I have long-ago installed a hand-hold onto the frame to assist in holding it for the stand deployment.
Mounting a bike that is parked on its centre stand has another technique that should be followed: Don't try to take the bike off its stand while standing beside it - straddle or sit on the bike first. Then, with both feet on the ground and the hands holding the grips while the fingers on the right cover the front brake, rock forward while pushing with the hands to move the stand up and the bike free. As the bike comes down off its stand, you can squeeze the front brake to catch any forward movement. I can usually do that with my Wing, catching the bike before even the shocks have a chance to collapse. Some people will even have a passenger on the bike while they tug the bike off the centre stand - but that is more dangerous and a passenger should only mount and dismount while the operator is seated and holding the bike upright.