Guy was shaking whilst asking for my number?

A retail worker I usually see everytime I go into the store and he complimented me once but I was wearing my mask lmao few months went past and I saw him today again.
I went to buy something and he was at the till. He seemed really nervous when I was talking to him lol. He said I’m beautiful and I said thank you and left.
I realised I had to buy something else from the same store so I went back.
I was in the queue and he was rushing to serve the customer when he realised I was there.
He managed to ask for my number/Instagram and I told him to write it down but he was literally shaking and so so nervous.
And I was wondering why lmao I’m not used to guys being so nervous and shaky around me!
Guy was shaking whilst asking for my number?
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