Not Waving but Drowning

Once in my lifetime I had met a new person who I had really not cared for the first time I met him. I had thought that he was just really different from me just because he didn't act the same way as me the first time we met.I guess that I just felt that we were completely different and didn't share any common things. But once we had spent some time together on different occasions I started to notice that we were actually really close and shared the common likes and dislikes such as we both played the same multiple sports and we ended up having a lot of classes together. I later felt bad that my first impressions of this person, now a friend of mine for a long time might have led me to stay away from this person and never find the real person within who i can relate to.that's what really disappoints because then I would have never met this friend of mine who I have known now for 6 years. The moral of what I'm trying to portray is that I have now learned that you shouldn't make an observation or judgement of a person until you really get to know them.