What does it mean when he changed his voice tone while talking to me?

Anonymous
Okay.. just like the title says.. What does it mean when he soften his voice while talking to me? I have never saw him acting like that to others.. Also he keeps touching my arms with his elbow, and sits really close to me during class, like he leans towards me.. I kind of feel like he likes me, becoz he has been staring and flirting with me for the past month and a half.. but I'm not sure, what do you guys think about him? Does he like me or not?
What does it mean when he changed his voice tone while talking to me?
3 Opinion