If being just friends is driving you nuts or you feel like you wanna hold her hand & be in love, then loosing that friendship may happen even if you dont try to take it to an exclusive level & be her boyfriend.
Eventually if you dont do or say something to make your feelings known you will/might put off a vibe like your not happy ( which makes for a crappy friendship / company ), or she will find a boyfriend or another guy friend which will make you change your mood around / about her.
Great relationships require work but, those that are ment to be are just that ment to be.
To loose a friendship for love is a noble sacrifice and one people make all the time.
Have the courage to fail & you may gain what attention from her that you desire.
If a failed courtship ruins all, well you will learn a priceless lesson about women, your perception of them & your place in a friendship with them, realities & Fiction made up in your mind about you & girls.
Also, becoming too over concerned about making her see your inner coolness & making a relationship of a friendship can make everyday interactions irregular and forced / awkward So ..... if you have a strong interest, somewhere mellow cool comfortable invite her there. Put her on your home turf so you are comfortable 7 yourself.
Perhaps a trip to the museum for an exhibition opening, a cafe for a poetry read, a cool mom pop asian food place where your knowledge of Vietnamese soups ( called PHO - said like \" Fa \" Super good, cheap - very worldly ) will make think you are really adventurous & cool.
If you are then flaunt it & take her on a food adventure, if you dont know more than fast food find out where some cool spots are & check em out.
Dont do the movie thing it\'s forgettable
( unless you can find a movie shes been waiting / dying to see that you wanna see too ) besides at the movies she will see a bunch of other guys hanging aroung making you feel less cool.
Going to the Museum is cool cause most people never go, Parents cant say \" No \" to em & you might be in the Top 10% of cool guys there & as a bonus there is plenty to talk about, perhaps you see a painting or sculpture & compare her beauty too or how it does not compare ect. OR even better you find a painting of an allegorical scene maybe Venus & mercury kissing and make a witty comment about never kissing a girl like that ect & seeing if she takes the bait ehhh

Pretty Smooth
Good luck my man & what ever you do dont mention you paint miniatures & if you cannot help yourself at least describe them As \" Imported pewter sculptures/miniatures from France, Britton & Italy \" this sounds much more interesting.
TH