Basically, same as Koen said.
The thermal pad is best done by putting a bit of normal solder (don't use lead free) on the PCB pad, grossly put flux on it and use a small heat gun (best a special hot air rework station). Air flow from a home improvement heat gun will just blow away the chip. Set temperatur to 400 ... 450 deg C, soldering may take some 10s of seconds. The pins can be done by using a soldering tip for SMT (these dished ones) using the same technique as TQFP chips.
I've done this successfully a few times.