Here are some ideas
1. Go to see a movie which you have been dying to watch.
2. You can go to a nice restaurant for dinner
3. You can treat your friends to massages or facials or manicures or pedicures.
4. Have a slumber party. Keep it simple. You can gossip all night and enjoy homemade snacks and popcorn or watch a movie.
5. Go shopping to a mall. Explore a mall and even treat yourself to something. Grab something to eat at the mall and then head back home to get ice cream and cake.
I don't really want a big party. i just want to invite a few friends and have fun. Any ideas on what i can do?