Set a date with your friend
Take advantage of your sweet voice and set a date with your friends at their expense. What you have to do is, pick up your phone, dial any of your friend’s contact number, and speak in a sweet voice like a pretty and attractive girl or a gentleman. Make a good impression by praising him or her and ask them for a date at some of the romantic place of your area.
Copy celebrity voice
You can also play a prank on family, friends, or colleagues in a celebrity voice by pretending that you have called a wrong number.
Surprise your loved ones
Call you friends, coworkers or family member and surprise them that he or she has won gift hampers, mobile balance, or lottery etc.
What is that in your newspaper?
If you have a good sense of humor and are looking for a bit of light-hearted, harmless fun on 1 April, then call someone early in the morning and let him or her know that there is a picture of him or her in the front page of newspaper.
Present a nice gift
Take an empty shoe box and fill it with papers, fruits or anything else of no use. Wrap the shoe box with a nice wrapping sheet, write you name at the top of it and present it to your friend.
Enhance the quality of your cardboard milk
If your mom buys milk in a cardboard, then you can simply add in few drops of food coloring to it. It is a harmless activity but its results are hilarious!
Get one or two rubber bands and put them around the handle of your washroom’s sink with a sprayer. Now, point the nozzle of the sink upward and outward to set it in a spray-mode. Wait to have fun when someone comes in and get a sudden splash.
Simple sick joke
Grab a water bottle and fill it with hot water. Now, add some blended leftovers, watercolors, or even pea soup to it. Stir it with a plastic spoon until mix thoroughly. Now, cover the lid properly and keep the bottle hidden under your shirt. Gradually make a trip to the cafeteria of your school, college, or university. Make a sudden announcement to grab everyone’s attention. Now, when everyone in the café are looking into you, bend over the table and squeeze the bottle to pew out all over the table like you've just thrown up. It is fun.