Well. You can either hold it and wait for its price to rise. Or you can sell them.
Yes that will be good for this man. $500 is not that much big amount but still it is okay for small investments at start. As this person is a newbie so this amount is much enough for taking a better start. He has to get some experience with all this so need is just to analyze the market and then start with this amount. For now, holding is better option for him. Good luck to you.
Yeah it's not a big amount, but if he can manage to hold this for 2-3 year, $500 can easily be like $10,000 clearly. All he needs to do is being patient and act according to the market conditions.