Give them a very expensive gift...something they would never expect from you...and something you know they are going to simply Love.
_Works everytime. Just put some thought into it. And give the Gift of LOVE.
I wouldn't want to make my boyfriend or anyone cry with a negative feeling :(. It only makes me sad.
But if you're talking about tears of joy... the best way is to give the person something or do something for the person that really means a lot to him/her.
I don't do the upset crying thing, usually. It takes a lot to make me cry when I'm upset. However, if someone does something really, really sweet and totally unexpected, I might shed a few tears. Same goes for my guy. Don't make it mushy, though, please. I don't handle romantic, over-emotional moments well. Haha
Dump them and lie about the reason you dumped them in front of their face and then tell other people the real reason why you dumped them and talk bad about them. idk.
If you poop on their side of the bed, and hide it under the pillow they will cry when they realize they are sleeping on poop. Peeing in the breakfast cereal also works.
But if you're talking about tears of joy... the best way is to give the person something or do something for the person that really means a lot to him/her.
He made me cry when he asked me : - marry me?
Of course I answered - Yes!!!
Waiting for a punchline...
Stick a needle in their eye