Hi, there is this guy who I see pretty much every morning on my way to work. He started smiling, looking into my eyes and saying good morning. First time I was so surprised I probably did not say it back (I cannot remember), next time I tried to say it back and smile as well. The thing is I am very shy and even when I try to say it back, it comes out very quiet and probably without a warm smile ( I feel a bit overwhelmed and cannot control my reaction). There were couple more situations like this. He now stopped greeting me and ignores me completely. And it bothers me to be honest. It was nice to see friendly face every morning and I want to say "good morning" to him as well. I wonder if it is a good idea to approach him and explain that it is my shyness rather than me being rude or not caring at all? I really miss his "good morning" and smile. It brightened up my day. Shall I just say it to him? Or leave it be...