Why don't guys look at me?

Guys don't really pay much attention to me and I don't get why.Yes,I admit I don't look people in the eye when I walk by because I'm insecure and have no confidence.But I'm starting to think that I'm ugly and unattractive and it has brought my self esteem even lower=((((I've never really liked myself and always considered myself not pretty because I really hate my face shape and nose.Guys,can you give me some advice?

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+1 y
Ugh thanks for the advice guys,I'll have to work on eye contact.Eye contact has been a major issue for me,I feel like if I look someone in the eye they might think I like them and I don't want to look vulnerable or needy=/
Why don't guys look at me?
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