Yeah... That has a looooooooooot of answers. You might want to be a bit more specific? You can do it in many ways: physically, verbally, by writing or texting, you might be more comfortable with one or two ways. There's subtle flirting and coming off as too strong but it's one of those social issues you need to figure out as you go along the way. Good luck
:rolle::icon_redfokay well for starters verbally and I know it's a lot of questions but can you please try to answer them if not, send me in the right direction.