your plants looks good, the "hairs" on top are just tiny leaves there will soon be alot of these growths "colas". the biggest will be the one on top. as for the leaves. it starts off as 1 leaf, 3 leaves, 5 leaves, 7 leaves, 9, leaves and ive even seen some big leaves with 11. And the bushier the better. small bushy plants just means its not having to strech for light and instead would rather use that energy for creating more veg. which in the long run will hopefully yeild more bud. Your doing great and doesnt look like any problems right now thou i would look into better lighting. 2 18 watt bulbs will soon ( few weeks) be very inadequate. Good luck and gods speed!!