How do I show my boyfriend that I am fun?

Well depends on what he thinks is fun? If he likes sports, play some tennis. Play some ultimate Frisbee. Find some common interests and do those.

Fun can be different for everyone. Reading books, watching the same show, movie while laughing at it together and then talking about it could be fun for some, while having a picnic in a park and looking at the clouds trying to figure out what they look like can be fun for others. The things that you do together and the efforts you make to come up with new ones are all that it matters to create your own fun. If he doesn't like any of your ideas or if he doesn't come up with any of his, then there is something missing on his part, not yours.

LOL! Well don't worry he'll get over it. Hopefully. But mean while go out have fun. Go to the mall,movies, or go out to eat. If that doesn't work then go to an amusement park. But if you don't know what he likes then.....don't blame yourself blame him for not telling you what he likes. Or just keep asking until he tells you. If that doesn't work then think about what to do next. But if you don't want to keep up with this anymore then dump him. See its so easy.

Get him a gift for no reason, just because. You don't even have to get him something expensive. I made my boyfriend rice crispy treats and cut them into shapes of hearts. I called him one day and said "I have something for you" then I went to his house and gave them to him. He's a macho guy and didn't want to say it was cute...but the smile on his face said it all. Having fun is not always about what you do with a person...Sometimes just showing that you care(and I don't mean talking about it) can make their day; even if you did "just sit around."

Hahaha, your boyfriend is kinda funny - you have to give him that :) Go see a comedy show or a funny movie. A big part of being "fun" is to laugh so do things that make you laugh. Play some games or sports if you're athletic. If he's complaining about you not being fun - where are his great ideas? If he makes suggestions, take him up on them. If not, think of a few of your own but let him take responsibility for some fun plans too!