How can I compliment a woman?

r/

You’ve probably seen this question like this many many questions, so my apologies.

I have a co-worker (18) and I’m also 18and her hair is really beautiful. She has straight her, but at the front she got bangs. I think she looks fabulous with her hair. If I compliment her on her hair, would I look like a creep? Doesn’t she get this type of compliment thousand times per day?
Would a casual ‘Hey your hairstyle suits you very much.

I think it’s also important information for the future, so please help me! Thanks in advance

TL;DR:

I don’t know how to compliment a woman and I’m asking advice.