Hi! I think,you should find out what does your friend like.You can bring something unusual for him(her).You can buy something cool and your friend will always remember your present.I think,many people like reading or watching movies.You can buy intresting book for your friend.I know,what does my friend like and I know what is his(her) favourite band,so I've bought a ticket and he(she) became very happy and went to the concert with me.I always buy something nice and sweet for my friends and family.I know,what do they like.And I buy them warm and funny presents.