b18b1 has small coolant leak...what can it be?????

Hey there guys and gals. I have a b18b1 in my hatchback. I just notice it has a small coolant leak. It is dripping a little bit off of the oil pan in the front drivers side. IT not a stream but it does have a slow drip. any clue what it is? my guess it is coming from up above the oil pan. so anybody have any ideas?