Basil Germination:
1) Fill containers to the top with a good quality potting mix or sterile seed starting mix. If not filled entirely, the container will cast shade onto the seedling and stunt growth.
2) Plant 2 seeds per spot, at no more than 1/4" inch deep, while being sure the soil is leveled out well.
3) Use a heated propagator to keep the soil between 80-85 degrees F. 
4) Use a spray bottle to mist the tiny seeds to keep slightly moist at all times, & so they won't become displaced and buried to deep. Alternately you can water from the bottom to avoid seed displacement in the soil.
5) Expect germination between 5-14 days.