What does that mean when two guys act differently?

Anonymous

What does that mean when my crush and his friend walk and they were huging and my crush was doing some behaviours and he talks nervous and sadly with his friend and his friend was huging him,... I saw him by chance in the street and I don't know if he noticed me or not but when I asked my friend say to me that he maybe do that when he sees you, cause you left him or because he trying to show you that he likes you But you ingores him Or he wants girls attention in the street?

What does that mean when two guys act differently?
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