Anyone know how to get better?

I am 18 and had a big glow up over the past 1,5year. But now I get attention of people that I am not used to, people make eye contact on the street and smile at me. Now the biggest problem I face is when a pretty girl does this, like I am at a point where I can hold eyecontact for a short while and remember to smile back but I don’t know what to do? Part of me wants to say hi but a part of me is afraid I don’t know what to say.

if anyone had any tips i would love to receive them

Anyone know how to get better?
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