Once the faucet assembly is attached to the sink, we turn our attention to preparing the sink itself.
With the sink still in an upside down position, place a bead of plumber's putty or silicone caulk around the complete edge of the sink. Make sure to locate the putty or caulk near the outer edge of the sink so that it will make full contact with the countertop when installed.
Next you need to flip the sink and attached faucet assembly over so it is right side up. Be careful doing this as the sink may be heavy. Also make sure you don't ruin the nice putty or caulk job you just completed at the sink's edge.
Now carefully drop the sink into position. See, now you know how these sinks get their names as "drop-in" sinks.
