When a girl says "I knew you would..." does it mean anything?

So this girl I like, we are in high school, a grade apart and we hang out at track often, and text a couple times a week. she says this often (more than anyone else I know) she says stuff like "I knew you would say that" after asking a question or "I knew you would laugh" after saying something. I know this probably means nothing at all, but I've been crushing on her for awhile so I really am just looking for ways of telling if she likes me or not, so is this a sign or am I just being desperate looking for proof she likes me?
When a girl says "I knew you would..." does it mean anything?
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