Signs that show that he’s seriously into you:
1. When you talk, he looks at you in the eyes not, at your body
2. He seems relaxed and and feels at ease when he’s around you
3. He leans towards you when you’re sitting / standing together
4. He describes you not just as ‘sexy’ or ‘hot’, but also as ‘cute’, ‘beautiful’, ‘smell good’, ‘sweetie’, ‘dear’.
5. He holds your hand in public and occasionally squeezes it gently to show that he doesn’t do it absent-mindedly
6. And when in public (despite the disapproving stares and contemptuous glances):
• He wraps his strong arm around your waist
• He kisses your hand gently over and over again
• He kisses your forehead and inhales deeply the scent of your hair
• He still would kiss your forehead even when you’re sweating
• He rubs your back gently and won’t squirm away when he feels your sweaty clothes
7. He kisses you on the lips and can’t ever get enough of you
8. Your pleasure is of utmost importance to him
9. He wants you to be comfortable even at the cost of his own comfort
10. He caresses your head gently and plays with your hair
11. He rubs your leg gently, not lustfully
12. He tells you things about his private life without even you having to ask
13. He’s comfortable with being honest with you and shares with you his opinions
This sharing is from my personal experience, if any guys would disagree with any of the points above, feel free to voice your opinion, and if you'd like to add more, that would be most welcome too! Cheers