Guys, if you put your arm around the girl's shoulder, does this mean you like her?

I was cold after having dinner with him and he asked 'are you cold?' And I said yeah quite cold and barely in mind it was a very cold night too. Rather than taking off his coat, he put his arm around me and held me close to him as we walked to the bus stop and I had my arm around his waist as I didn't know what to do with my left arm.

any chance this guy likes me?
Guys, if you put your arm around the girl's shoulder, does this mean you like her?
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