A few things I remember from my first 2-line foil....
Always let out all the line on the ground before you fly. Do not launch the kite over your head into the wind and then let out line as it climbs like
you might have as a kid with a single line kite.
Start the kite on its back with the trailing edge upwind (towards you). Use soft weights to keep the trailing edge down Use bean bags or palstic bags
with sand, rice, or dried beans - something like that. If the kite is not an annoying handfull without the weights then you may not have enough wind
to fly. They will fall off as you launch.
Step back to inflate and step back agian to launch and take the kite to the zenith (directly overhead) and get your brearings there. Steer with small
movements by pulling on the respective line for the direction desired. Always keep your hands in front of you and together. It's natural to try to
moves your arms out to the side to steer and to twist your body all around. It looks hilarious but doesn't help. Hands together and out in front
always.
For more steering input, pull with one hand and push with the other.
From the zenith, start with small turns to one side then the other then back. Go farther out as you feel comfortable, and eventually try flying it
down lower accross the window (down in front of you).
Practice and you will be an ace looking for more kite (but will always have a soft spot in your heart for that one).