Most Helpful Guy
It means that he likes you enough that he feels comfortable introducing you to his friends.
Most Helpful Girl
He likes you, but I'm telling you, don't read into stuff like this. Until he specifically says he wants to be in a relationship with you/exclusive, everything else he does... it doesn't necessarily mean much in terms of he's going to want you to be his girlfriend. A guy can do a thousand things for you and still not want to commit, so just remember that to avoid getting hurt.