Does my coworker like me or just being friendly?

there's a guy that started working at my job a few months ago. So far I know he has a girlfriend according to another coworker. The first time we spoke he was told by someone else to give me some paperwork. He didn't know what my name was but he told me when they described how I look he said he knew exactly who they were talking about and smiled. Him and I were in a same meeting and he sat behind me. The next day he asked me why was I so quiet in the meeting and how he was sitting behind me I probably didn't notice him. I don't talk to him much but I do ask a coworker he works close with for help all the time. He noticed it then later told me that if I need help I don't just have to go to the other guy and could ask him for anything. I don't want him but just curious.

Does my coworker like me or just being friendly?
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