"
Anyone Can Be a Magician" in Harry Lorayne's
The Magic Book is a good trick to do that involves multiple spectators. It's easy to learn and perform, so you can focus on your presentation. It's based on the one ahead principle.
I think it's a fairly common trick, and you'll also find it in
Magic For Dummies by David Pogue, where it is taught under the name
The Three Card `Pick By Touch' Test.
Quite a few magic websites also teach it as a beginner trick (with minor variations) under the name
X Ray Vision. For example: [
link].
In his video
Amazing Secrets of Card Magic, Michael Ammar also teaches a simpler version with just two cards under the name
Mind Power.
As always, a good presentation is key, and with good showmanship and well-executed, it can still surprise spectators.