Bitcoin was never intended to be a long-term (or even mid-term) store of value. The misperception that that is it's best use is really causing some PR problems for bitcoin, and is going to get a lot of people burned.
The ideal use for bitcoin is as an anonymous, decentralized means of transferring money. That's it. But it's the best thing for that; so good that the feds are scared to death, and are trying to shut it down (good luck with that though.)
Trying to sell your friends onto bitcoins because of how much it's going up is to turn them into speculators. It might pan out, it might not. That's kinda risky.
Instead, just suggest that when your friends want to buy stuff online, they try to use bitcoins to do it. Privacy and all. Want to send money to a loved one across the country? Use bitcoins, and avoid those hefty transaction fees. Someone trying to leave the country, but not wanting to carry their gold with them? Convert the gold to bitcoins just before the trip, then upon arrival, immediately cash out in the local currency and buy more gold. It'll cost a little for the transaction fees and bitcoin price fluctuation, but it's better than not getting the gold across the border at all.
Transfer of value, folks, not store of value.