Girls, Why is this girl always lightly touching her neck when intslk to her?

Anonymous
Noticed the girl I like was constantly touching her neck with her fingers. At first I thought she was scratching her neck. But then I noticed it was everytime I spoke to her. She did it 4 times in one day when I spoke to her. She also played with her collar on her shirt and pull her collar of her shirt outwards.
Girls, Why is this girl always lightly touching her neck when intslk to her?
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