Ask him what he's thinking every 5 minutes.
Or keep missing his calls, i found this out by chance it happened one day that everytime he phoned i was in toilet, garden, shower or shops without my phone of coarse and this drove him nutty.
you are a woman? that's easy just talk a lot.
Ask him how he's doing/What he's doing constantly and message him every other minute.
Yap yap yap. Talk about your mum a lot
Hide his leather shorts.
Annoy a girl instead... Muahhahahahahahahahahaha....
-.- is this a kiss?
Meow... Hehehehehehehehe..... O.O Is this a kiss?
O.o this ?
Laugh at him and belittle him. But my advice is don't so it. He might decide to do something about it.
Make him listen to Michael Bolton.
Constantly text, all day, every day, texter girl power fingers, pretty texted, texter girl text them back texting girl... But hey, when the guy youre leading on texts you, SOMEHOW something malfunctioned, hours go by.. That's the most surefire way to annoy a guy.
Act like the guy, that's the only way to annoy me XD