Hey guys and girls need you opinion?

I like this girl at my school , but still have not built up the courge to ask her out or such. There are only 4 more weeks left of school on the last day should i... Should i put a small trinket, and a note, saying "hope you have good luck at High school, and ill miss you" in her S-cube? at the last day of school?(s-cubes are storages, were we put our stuff) we are both in 8th grade but going seperate high schools. Should i do this? what do you think about this?and Girls, how would you feel if a boy did this to you? happy ?angry? Would you apreciate it? Please give me your opinions on this.