Some guys are just completely clueless. You can parade in front of him in the sexiest clothes, flirt with him endlessly, even buy him drinks - but if he’s put you in the “friend” slot in his head, that’s where you stay! So what can you do?
You could do what I did - just walk up to him and tell him, bluntly, how you feel. That worked out okay for me. But it doesn’t work with every guy, and you may be afraid of putting yourself out there like that. So here are some more subtle things you can try.
If you do all these things and he still doesn’t get it - are you sure he’s interested in girls?ls?