I'm not a guy or anything, but I would say; not nessacerily. Maybe he likes you, maybe he doesn't. Some guys show it by being mean, but that's definitely not everyone.
Treat 'em mean, keep 'em keen.
If he is playfully teasing you and laughing as he's teasing you, then chances are he does.
=========================
More from others...
I am a guy and I would never be mean to a girl I like, on the contrary, I act shy and show her respect, kindness and so on. Maybe when I was a kid I might have been mean to girls I like but not now that I am more mature.
it doesnt mean he likes you.
yes
It sometimes means that he likes you, but not always.
That he likes you?
It means he likes but has a girlfriend.
In guy talk, that usually translates to "I have the emotional intelligence of a teaspoon and think being mean equals flirting." It's like a toddler pulling your hair in the sandbox and expecting you to swoon. Tell him to grow up or find someone who can express their feelings without acting like a middle school bully.
he likes you
If a guy says that you are pretty it does not mean that he likes you. He could like you, or he could just be paying you a compliment.
...it means that the guy you like, likes you!
it can mean that he likes you
= Jealousy
If she acts weird around the guy she likes that means she like him if she stares at him it cud mean she likes him if she seems shy around him that cud mean she likes him also