Well, it may be a good idea to ask questions. If you want to keep the whole thing a surprise, then maybe you should ask vague questions such as "How did you always picture your proposal to be like?"
Don't mention you ideas to her. You do want to find out what she has always pictured it like though, so that you can make sure you go about it the right way. For example, your girl might have always thought that public proposals were not intimate and she may have always wanted to be proposed in private by a lake.
If you don't ask her and just make up your own ideas, then you may do it completely wrong. She might get a little upset when you bend down on one knee at a public restaurant or in front of family members. So find out what it is that she likes.
Think of a cute way. Giving her a drink with a ring placed in the bottom (make sure she doesn't choke)
Propose on stage, but make sure you actually love each other.
Think about her personality and someone you know lots about and think how they would want to be proposed to, maybe ask them.
pull your trousers down and say 'hey babe, this could be yours'
If you are a man then why don't you just propose to her.
If not then otherwise your a different sex or just tell her to propose to you :L
Other ways: Inception
You'll need to talk to your parents and buy an engagement ring.
make a sexy time
She thinks of you as a friend, not boyfriend or husband.
yes u could :)
Get her pregnant first, so she'll have to say yes.
The girl can propose too. My mom did to my dad
Why would you propose to an old girlfriend?
There is no way to propose if you don't know the girl and what is the point in proposing?
yes he does he first meet my friend online and the first thing he said was "will you marry me" hmmmmmm why does he do that
The exact same way you would propose anyone you'd want to propose.
they have to be in love. Then click on the girl while playing as the boy and choose "Propose" and then "Engagement".
Yes she can.
Don't propose then idiot