Or are they always unsure until he blatantly asks her out?
Most Helpful Girl
I look for consistent eye contact, every now and then some form of maintained contact (like his leg pressed against mine, or his arm consistently brushing against mine), most likely leans towards me instead of away and if I say I'm with friends he makes an effort to say hello to them.
I'm not always sure if he's interested, cause some guys can just be really nice and polite because that's their personality not cause they're interested. But if I stick to the signs I've mentioned above, 9/10 I'm right