Are you female or male ? Can you allow me to fantasm about you in a yuri relationship with her if you are indeed female ? Yep i agree on that.
That was a whole lot of buffer for one plead. Hahhhh~ fold a paper lotus that holds a ring or a crystal charm Or you could get a glass container, fill the bottom with rose petal shaped soap and add the real gift within
Buy a bald cap and tell her you want to let go of your worldly desires and follow your dreams of becoming a monk.
Whoops just realized you want something not normal....um, uh, balloons filled with messages of why she is your friends and how thankful you are and make her pop them Yes. Me likey♡
Sneak into her house when you know she will be there but parents are gone, undress except possibly underwear, get giant ribbon and bow made of soft material in her favorite color, place water bottle by side of bed with date rape drug (fake) and a card explaining that if she wants she can have her way with you without you remembering and happy birthday
Nothing i am just a passerby that love yuri. DO IT ! O_O After that it's on you if she takes it seriously and go out with you, after that there is the problem about how the parents see the relationship. Or you could just say: GOT YOU ! If she blush.
I think @Tsuru55 and @canaria23 are assuming that you are in a 'yuri' like relationship with your Liz (or at least they want you two to be if you are not close enough for that kind of relationship ), in fact I think yuri lovers who read this thread would assume and suggest similar things as kissing her Anyway, I suggest something with a bit of horror and a prank For example, a being shot cosplay (or hit by a car), like, go in there with 'blood'(paint for example or fake blood) stained clothes and play like you are barely conscious and staggering to walk (make some heavy breathing) and say that you didn't want to miss her birthday for any reason so you ignored your 'fake' injury(that you got on your way to her) then as you start to fake losing consciousness give her a present and faint (thought this prank will depend entirely on your acting skills) Happy party
Also, as for my suggestion... How about a prank hidden in a gift? Like, a cake that explodes, but something bigger~ How about... my first idea was somewhere along the lines of, taking her skydiving, and then faking that your parachute wont open, but that wont work very well, i think
Not assuming though. I mean : kiss her and see her reaction. Depending on it and your+her parents' views on homosexuality, choose to date her or not.