Just be you

6

just give compliment first then talk about literally anything you want to, they do not care

3

Like if a cute guy smiles at me I physically cannot smile back

1

genuinely give a compliment and smile at them often. say hi sometimes. thats all you have to do to let them know your interested. and if you start talking to them (regularly), be blunt. you'll have a higher success rate than guys would in the opposite situation

1