Really depends on who you are, height, weight, strength.
I use to own a honda deauville which fueled and loaded weighted a good 300kg and the rear shock sat very low as standard anyway. Best way i use to do it was
Bike on side stand
Lift bike level with side stand still out
Right foot on center stand foot peg bit
Place all your weight onto the right foot and left hand on left hand bar grip and right hand on the left hand side rear rack grip or another spot on the left that you can pull on (the bike will not go up at this point but you will be able to balance the bike and yourself to get ready)
Using your right and left hands, **** your knee (no puns here) pull with your arms on both right and left hands and pull your bike up and push down with your right foot using your left foot as a balance weight.
This does sound very technical but once you do it in real life its fine. Ive used this to get a Pan european, varadero 1000, deauville, gsxf600, gs1200, tiger 1050 etc which are all heavier bikes on to there center stands (dad use to have the tiger 1050 lowered by 50mm and still no bother to get up on centre stand)
But then again i am 6ft4inchs and 15stone with out my bike gear and pretty built
boy!! (who eat all the pies, who eat all the pies......continue)