People who are blind are still ordinary people. It can feel quite awkward for them if you say they are amazing for accomplishing ordinary tasks like walking or tying shoes. They too like ordinary things and have ordinary hobbies, but it’s not necessary to make a big deal of everything.
Also keep in mind they probably have years of experience using nonvisual techniques to live their lives. Feel free to ask how they do something, or how best you can assist them, if help is needed, but don’t assume they can’t accomplish something simply due to not being able to see.