If a guy is happy to see you does that mean they like you?

He wasn’t expecting to see me today and I know his friends have mentioned it to him when they saw me. He notices I walked past him and went to my room/desk, and he comes in greeting me and telling me he wasn’t expecting to see me. He was smiling wide and overall happy to see me, he even stated “ that’s good you’re here” and he also stroked his hair whilst looking/talking to me. Does this mean he likes me?

If a guy is happy to see you does that mean they like you?
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