I think if i'm at a stop getting ready to start uphill and right i'd have both feet down, clutch in, hold it with front brake whilechecking for oncoming traffic, etc
Smooth start on a hill: don't try to brake and throttle at the same time. (You might hold the brake a teensy bit with your fingertips as you start to give throttle,) Let go of the brake as you give it a little throttle and simultaneously let the clutch out a little bit, just until it "grabs", keep adding a little more throttle and a little less clutch till you're rolling, once you're rolling let the clutch out all the way. (You need to give a little more throttle than you would for a normal start, since you're going up the hill.)
Meanwhile, (since you're turning right up the hill) you need to get the bike leaning right. Since you're barely moving yet, you can't lean into the turn as you normally do in a curve. to lean the bike, you slide your body left (as a counterweight) while pushing your bars to the right (and looking to the right where you want to go).
Low speed stuff is definitely harder, but take a day and practice a little and you'll be amazed how much more in control (and less of a dork) you feel!
See these 2 good books with a lot of good information:
Proficient Motorcycling by david hough, and
total Control by ... ??? I can't remember i'm sure you can google it
(I found Proficient Motorcycling the more useful of the 2 books)
Check your local library - mine has both books - you really only need to borrow it every year or so to brush up,