Mỉm cười. Nháy lông mày. Nghiêng đầu về một bên. Giao tiếp bằng mắt.

I'm interested in that, but I only have a few mins. Can you give me at most the first 500 characters of a detailed explanation in English about that?
. Smiling is one of the most powerful ways to send a message to someone that you are friendly and loveable. The next time you meet someone new, just give them a big smile to show that you are friendly. You should receive a smile in return if the person is also friendly. Make sure that your smile is relaxed and natural, not forced or exaggerated, or your smile might not get the result you were hoping for. An eyebrow flash is also an effective way to signal to someone that you are friendly. An eye