The 2nd is definitely looking like a girl, and I'm not sure on the 1rst and 3rd. They are still a bit young to really know, so you'll have to give it some more time.
With that comb and upright posture the top one is a boy.
With posture, body shape, and no comb the second should be a girl.
The bottom one has mixed signs, might need more time. The comb and what looks like heavy legs say boy. Posture and body shape holds out hope it might be a girl but I's guess maybe 80% chance of a boy.