Lyric discussion by itsmelodydoe 

Cover art for Trees lyrics by Twenty One Pilots

I think this song is about social anxiety. I have it and everything he says sounds like something I think when I want to make friends. For example, when he says "standing cowardly," he's scared of what people think about him. Another example is when he says, "I want to know you" and "I want to say hello," he wants to know them as a person and he wants to say hi and be their friend. This song always meant something to me but I never what it was until I analyzed the lyrics more today.