As technology grows more sophisticated, inventors are finding ways to use robots and other automated devices for tasks that once required a human touch (such as mixing a martini). Here are some of the ways robots are being used at events.

The Makr Shakr is a bartender, social sharing system, and alcohol consumption monitor in one robotic design. Designed by the M.I.T. Senseable City Lab in collaboration with the Coca-Cola Company and Bacardi Rums and produced by Italian firm Carlo Ratti Associati, the robot debuted at the Google I/O conference in May. Guests transmit their cocktail orders via the Makr Shakr app, then watch as three large, orange robotic arms mix up the prescribed combination of liquor, syrups, fruit mixers, and ice. The movements are precise enough to muddle a mojito and thinly slice a lemon. A large screen behind the bar displays a variety of stats, such as number of drinks in the queue, approximate wait time, drinks ready for pickup, and most popular spirits by gender. The app also allows users to see what type of drinks others are ordering, rate the drinks, and share photos on social networks. It also aims to promote responsible consumption by monitoring what a person orders and how often. The developers say for now Makr Shakr is a prototype, intended to be a “social experiment that looks at how people might embrace the new possibilities offered by digital manufacturing.”

It sounds like something out of a sci-fi movie: a drone delivering beer to guests at a music festival. More than 150 guests at the OppiKoppi music festival in South Africa in August received free cold brews via drone. The initiative was a partnership of Darkwing Aerials, Windhoek Beer, and festival organizers. Guests ordered the beer using an app on their smartphones; staff received the orders and loaded parachute-equipped, single servings of beer (with a lid) onto the drone. Once in the air, the drone used the GPS coordinates of the phone that placed the order to navigate to its destination, where the single beer would drop and parachute down to the waiting recipient. The only area of the festival that was off limits for deliveries was the main stage, where the dense crowd made it too risky to drop beer from the sky. Darkwing Aerials owner Dean Engela said they intend to try the service at future events, using more than one drone to serve guests.

At South by Southwest Interactive in March, 3M wowed guests with a holographic virtual presenter. “Jenny” could sense people passing by and would speak and gesture to them, offering information about panels and events and inviting them to interact with an iPad displayed in front of her.

New systems allow users to participate in meetings and events from afar. MantaroBots TeleMe (left) uses an Apple device or Android tablet mounted on a tall, rolling base. Users connect to it using Skype or another video conferencing application and then control its movement from their desktop. “You have a screen, camera, microphone, and speakers in that nice square that emulates the head. And you can pan and tilt the tablet so you can look directly at people without turning the whole robot,” said Jeremy Parsons, C.E.O. at Mantaro Product Development Services. Anybots QB robot (right) uses an integrated screen, camera, and speaker atop a mobile platform that can be positioned from two and a half to six and a half feet off the ground. Users control and activate the robot using Anybots’ Web-based communications system. The company is developing a new model, the Qx, that will have a larger screen and be available in early 2014. At trade shows, these robots can allow someone off site to engage with visitors in a booth and to virtually explore the show floor. Both systems are equipped with obstacle-detection sensors and laser-pointer devices.

Ford Motor Company has brought its robot, Hank, to several auto shows over the past few years to greet and entertain consumers. The robot is controlled by a staffer hidden from view wearing sensors that transmit his movements to the robot. The staffer also has a microphone to carry on conversations with passersby via the robot.