Yes asking the person to marry u is the best option to hint it!
Guys oh guys... if using sms try something original, instead of the direct"i think i have feelings..lets get together" ... it would b a major shock! Good if she likes u too, but horribubble if she's wondering exactly what time you took your medication, so she'll most likely be screaming "WTF...WTF WTF WTF"
Perhaps sth like....
"Hey my name is 99. whats ur name? i hope its 89 bc i like people named 89."
can be interpreted as lame, but it can also b perceived as sorta cute =]
i suggest u to dont be too direct.. leave it somewhat vague so she'll be confused and u can get a reply for sure!
If ur planning to sms, choose a good time, like within 24 hrs of seeing her and having a great time on fone or sth... dont send abruptly or it'll be a complete shock
Then again, some things are best to do in real life. However, don't confess in real life. just heavily hint it...if u feel that she mite b interested in u..but if she isnt interested...she'll see u as a prick attempting sexual molestation.
that's all from a perved female perception!