Welcome to DeviantArt! Well a method of making friends would be to join a group or something. If you are talented in a certain art type offer your help to others who are wanting help in that area of art. If you really want to talk more to a person with out the hassle of comments/notes then offer to talk to them on Skype, discord, or a different convenient method of communication. I hope you enjoy DeviantArt's community just watch out for "trolls".