Well that depends… For some events, you can choose to receive one mobile ticket that will allow entry for everyone you have paid for (up to a max of five people per ticket) BUT YOU MUST ENTER THE EVENT TOGETHER.

So for example, if you know you are going to the event with your friend you may find it easier to just send a ticket for two people to your own mobile.  The one ticket will allow entry for both of you.  Of course, if your friend has a tendency to be late, you cannot forward it to your friend to enter the event separately.