If a guys always looks down when he sees you, does it mean anything?

Anonymous
There's this guy that whenever I'm in his presence or in front of him he like puts his head down, or goes the other direction. Today right when he saw me walking in the direction toward him he immediately put his head down. does it mean anything?

(I used to like him, still do, and he used to like me I believe, and we never told eachother , however we went through a rough patch, and haven't spoken at all.)
Updates:
+1 y
I saw him looking at me but then second I turned around he looked straight down. I should probably have stated that first!
If a guys always looks down when he sees you, does it mean anything?
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