Firstly, He should not worry. Allah is with Him.
Secondly, his situation is understandable. Some people have given some good suggestions above about going on tours and starting some exercise where he can meet new people. He should also start going to the Masjid. He might meet new and decent people there. He can also join an Islamic weekly classes to meet some good like minded educated people (I can recommend). Allah will help him become more confident, In'sha'Allah.
Lastly, I'm here if he wants someone to talk to online. I have lived in different places, interacted with different nationalities of people, lived different types of lives. He can inbox message me here on fb.
May Allah Bless him & you.