Spray them with water and super thrive, B-1 or seaweed extract or all, keep the surface moist. Keep bottom heat on the container. Do not expect to see anything for 10-14 days or more so constant supervision and worry will have absolutely no impacts except to drive you nuts. The only advantage to soaking is you can see which seeds plump up and which are duds. When it comes to seeds, if the seeds are young and fresh and properly harvested, and if the soil is moist but not wet and warm, most will grow. compared to cuttings, seeds seem to be easy. Bill

I have used the same way of growing plumeria from seeds. It' s ok. Be patient and you will see beautiful results!
Go and have a look at: http://www.plumeria101.com/seeds101.html

I didn't know about soaking the seed first and planted the seeds in a loose potting mix. I kept it moist, sraying every other day, and yesterday (about 1 week after sowing) I have three seeds sprouting. They are Pink Slaugter that I received in a trade. I'm thrilled that they sprouted. The trick, I think, is to keep them moist.