Package Delivery Person
Waiting around all day for a special package? Take a shower. Your doorbell will ring just as you lather up your hair. You could also go into the back yard out of earshot of the door bell. You can also run to the store, but the important part of this method is only to be gone for five minutes.
Waitstaff at a Restaurant
There are two ways to guarantee immediate service at your table. 1. Pack your mouth full of food. 2. Have absolutely everything you could possibly want already.
Police Officer
This is similar to the waitstaff. The less you need one the greater the chances of one being in close proximity. If you really need a police officer, make sure nobody is committing any sort of crime against you. Also, it helps if you are engaging in a behavior that warrants the attention of a law enforcement officer, but it’s even better if it’s a victim-less crime.
Your Boss
Work really, really hard for days and days without a break. Especially work hard if all the other employees are fucking around. Then, take a 30 second break to check on the status of your Amazon order. Zing.
Your SO
Go to a remote section of the house and do something that you prefer to do alone. Obviously downloading porn, masturbating, or taking a shit will work, but, really, any time you want to be alone will guarantee immediate results.
A Car on a Desolate Stretch of Road
Take a piss by the side of the road. Have a need to block the road in order to move something heavy and bulky across the road. Enjoy a quiet moment of solitude in a serene pastoral setting.
Anyone
Rip a big stinky fart. You could be the last person on earth at the Apocalypse, but confine yourself to a small space and rip a paint peeler, and I promise you someone will appear around the corner and stand right in the middle of the storm.
Another way to get someone to appear out of nowhere is to go on a hike in the most remote corner of the earth with your SO. Find a place where an airplane has to drop you down by parachute. Hike for one week over the most difficult terrain. Then, hike for three days off the trail, and far away from any sites or source of water. All you have to do now is have a desire to be intimate with your SO and a group of hikers will materialize faster than your drunk uncle at an open bar.