In the words of Billy Joel, "tell them about it/tell them everything you feel/give them every reason/to accept escape room joy for real." Okay, maybe Billy wasn't singing about escape rooms, but he should have. If you have some reluctant friends, try these tips.
Make sure they understand this isn't a glorified word problem. Highlight the immersive and adventurous aspects of the game. Show them pictures to give them a feel for the setup. A picture is worth 1000 words and may lead to your friends' first escape room.
Solving this escape room mystery may be as simple as
choosing the right theme. If they like the Walking Dead, find a zombie-themed escape room. If they like needlepoint, you may need to find other escape room friends.
Coordinate the outing. Escape rooms fit up to eight people. Volunteer to do the difficult work of scheduling the game. Your friends will have so much fun that someone else will volunteer to set up the next one!
Make it an event. Schedule the escape room, then head out for dinner and drinks. People will be much more willing to sign on if you create more of a party atmosphere. And the conversations about the game over drinks are always epic!
BONUS tip - try making your own custom escape room game. Create a game specifically for escape room newbies, you can tailor the whole experience to make sure they enjoy it!