Just insert both your [M]FoTM game and your DS:cute game into your Nintendo DS and play DS:Cute as normal. Nothing will happen right away. You will have to play around and wait. Eventually, you will see Gray in the mine or Cliff in the Inn or any of the other Mineral Town characters. Nothing happens in your [M]FoMT game, however.
For a full list of who appears when on terms of bachelors, go here: http://www.fogu.com/hm6/forgirl_marriage.php and scroll down to mineral town boys, and click on the one you have your eye on, or all of them. :3
to see who appears what day, go here: http://www.fogu.com/hm6/chan1/gbaconnecting.php
all of those links are from fogu.com/hm :3
Hope this helped! I put this up because lots of people answered my question incorrectly or with more questions XD so...I figured it out...so why not put it here =D
here is a link to my question:
|See characters from mineral town||put in both GBA [M]FoMT and DS:Cute games into your DS and wait for characters to appear|