Verified answer

Honestly guys suck at trying to be sly. We just check out a girl. We will just stare and probably not even look away lol. So if you catch him staring at you and not out of coincidence he likes you.

When I really like a girl, I tend to focus all my attention on her. Talk with her the most, look at her the most, make as much eye contact as possible, etc. And eventually I'd ask her out, once I've gotten to know her a little better. Assuming she accepted my invite to take her out then I'd make more physical contact with her. NOT too much contact, just enough to show her I am interested.

Well I personally, will compliment them a lot for a while, ask them a lot of questions about themselves, and try to hang out with them (but with other people around at first). Then I start flirting a little and making sure she knows that I care about her, and will always be here for her. I am her shoulder to cry on, or vent too, or whatever. Then I start asking to hangout, but in smaller groups. Double dates, kinda. Then once im convinced she likes me back. I ask her out. Hope this helps!