The SMD Hand Soldering Technique that always works for me.
Step 1: Add lots of flux (Liquid or Solid). (Folks usually skimp on this. This is the most important step to get a good soldering joint)
Step 2: Add a solder blob to one of the pads initially.
Step 3: Heat the pad with your soldering iron and with the tweezer slide in the part in the melted solder to hold it in place.
Step 4: Solder the other pad with your iron (which should be easy as it won’t move. Add flux if needed)
Step 5: Clean the flux with Isopropyl Alcohol.
PS: Not my best soldering effort is shown in the video below (Trying to get a good mobile camera angle shot and soldering is hard) 😀
But I wanted to show this on a 0402 part to show that this base technique is applicable to any part of any size. (It’s much much easier on larger parts)