[kk2002s]

Are those few drops in front of the right rear tire?
Do you have condensation on the trunk lid above the expansion tank?
Pull the plastic cover off and check the purge valve for coolant residue. There is a drain hole at top of the expansion tank that drains down through that hose down to just in front of right rear tire. Condensation or a small amount of pressure released coolant will drain down that hole/tube and be a few drops on the floor. Condensation can result in bad Cap (old part number ending in 01 - newer ends in 04) or purge valve issues possibly the 'O' rings in it.

A bad tank will typically leak into the trunk and it will usually be more than a few drops and it will also tend to lower your coolant levels. Pull the foam under the carpet as well