Is is inappropriate for me to complement someone on the street if I like their hijab? Often I see women with hijabs and the fabric is very pretty. I am the kind of person who likes to give people compliments so there have been times where I have told people I think that it is very beautiful. They have always smiled and said thank you but I am worried that I might be being insensitive because the hijab is meant to represent modesty. Am I over thinking this or should I not do it anymore?

UPDATE: Thanks for all your great replies. I think from now on I am just going to go with "I like your outfit" or "You look very nice today" since that includes the hijab and won't make them feel like I am singling them out because they are wearing one.