What should I say when i propose my girl friend? And how should I pop up the proposal question?

Make it romantic, she will remember it no matter what but you want it to be a unique experience for her. Last Christmas my brother wrapped his Gf's ring and handed it to her and when she opened it got on one knee and then gave her a little speech on how he aint much, cant give her much, but he can offer her his love for the rest of their lives and then popped the question; and with tears of joy running down her cheeks, she embraced him and said yes. Iv'e also seen a friend do something similar but it was for her birthday and he put her ring into a cupcake and said that was all he got her for her birthday and when she started to eat it, he got on a knee and popped the question. There is 2 examples, just word of advice, make it unique, remember she will not forget it, dont be nervous, and just be yourself.