[GiantBuddha]

wtf...people play with headphones on all the time. Your friend shouldn't have a problem and hopefully will have a great time. It's probably best to let the floor know so the dealers know to be as clear as possible in directing the action, etc. Also you don't want them to think any gestures you might use are some sort of poor attempt at collusion. But tell your buddy this and he'll understand; no one wants people to think they're cheating.