Practical jokes are what builds relationships within the company. In addition, the organizers and the "victim" can laugh heartily and get a lot of positive emotions.
Frozen computer
A great prank for those people whose friends often use the computer. Until your friend sees, take a screenshot of the desktop using the CTRL + PrtScn combination, save the resulting image somewhere (just paste it in Paint and save it to your hard drive) and set it as a background. Then remove all shortcuts from the desktop. For the best effect, you can also remove the taskbar. Your friend will be at a loss when he tries to launch this or that shortcut. After you and your buddy have a good laugh, just go to the trash can and click on "Restore all objects".
A train
This draw will require three people (one of them is the "victim"). Take a walk on the railroad. Two walk on the sides, and the victim in the middle. Suddenly, as if by agreement, the two sharply turn around and take a step to the side. The victim sees this and realizes that the train is rushing behind. The person is lost and does not know where to go.
Bird
Walking in the company, suddenly exclaim: "Guys, look, there is a dead bird in the sky!" and point your finger to the sky. Oddly enough, all friends will surely raise their heads up.
Toothpaste
Your friend stayed at your house for the night. Everyone knows that plastic tubes that contain toothpaste are very easy to empty and fill. Empty one tube and fill it with regular mayonnaise using a syringe without a needle. Mayonnaise is difficult to distinguish from regular pasta, so your friend will be very surprised when going to the bath in the evening.
Strange cigarettes
This giveaway is suitable for a company that has at least one smoker. Buy a regular pack of cigarettes, rip off the label and present them to your smoking friend with the words: "An acquaintance here gave me new cigarettes, try it." After that, you have to do whatever seems strange: get dirty with paint, sing songs and other things. Other friends, having previously agreed with you, will not pay any attention to this, while a smoking friend will be confused.
Reliable comrades
Early in the morning, call your comrades and in an alarmed voice ask everyone to come to you with a large bucket (with or without water). It will be fun to watch the picture: a crowd of guys with buckets will stand in the courtyard early in the morning. Some may come by car. Bottom line: there are a bunch of cars and people with buckets at your entrance.