What should Sam do in order to effectively deliver this joke to all of his friends?

While calling friends might allow for a personal touch, the phone does not facilitate the same level of engagement and response that a live audience provides. The lack of visual cues and group dynamics may diminish the joke's impact, especially if it relies on delivery nuances.

Posting on social media lacks the immediacy and interactive feedback that a live delivery offers. The humor may not translate well in written form, and the absence of real-time reactions can lead to a less effective delivery, as the timing and expression crucial for humor are lost.

Emailing could reach a wide audience but similarly suffers from the lack of interactive elements that enhance comedic delivery. The written format may fail to capture the joke's intended timing and delivery style, making it less likely to elicit the desired laughter from his friends.