Question: how to know if your guy friend is falling in love with you?
Answer: He's Putting More Effort Into His Appearance. ... 
He Acts Differently. ... 
He's Not Dating Anyone (and Makes a Point to Tell You) ... 
He's Protective of You. ... 
He Makes a Point to Hang Out Alone with You. ... 
Your Hugs are Longer. ... 
He's Quick to Do Favors for You.