Question: signs he is falling for you but hiding it?
Answer: He tries to impress you. He never turns down your offer. Whatever you have in mind, he's up for it. ...  He never brings up other women around you. ...  He leans in. ...  He makes fun of the other men in your life. ...  He makes sure you know he's single. ...  His body language is open. ...  He gets quiet when you start talking about another man.