Why the awkward silence, warm smiles but also poker face?

A guy in my building who I see in passing will always smile warmly and talk softly. Polite gentlemenly and has often wanted to hold the door open for me and greet me.

In the past, I did catch him staring from afar.

Sometimes if I see him unexpected, he will give me this poker face (almost angry) and not say a word.

He will also be a little timid at times and there is some awkwardness.

While he is, very attractive to me but I just am pleasant and normal with him.

Was curious to hear your thoughts Gag Community. Thanks ๐Ÿงก

Updates
1 y
We happened to run into each other at the elevator and he was shy to get in.
Why the awkward silence, warm smiles but also poker face?
Post Opinion