Do we really need to be ashamed of being called gambler? From my points gambling is something that can never be covered just as I do say before, but one should be happy for it because there are many people who mades a living from it except those that are misrepresenting or that are not taking proper action towards their characters on how they present themselves to people before they could see its as a bad habit. Judgement always comes when we don't gamble responsible and present ourselves properly before someone could say a bad thing towards our actions is when we might have displayed to some irresponsible acts.
Maybe some people feel embarrassed to be called a gambler because their environment cannot accept someone who gambles frequently. That is what makes some gamblers hide their gambling activities from other people so that they don't get bad words about them. Judgment will always come if what we do is different from the people around us so we will choose not to tell others. But if our environment can accept that we often gamble within reasonable limits, perhaps we will not hide our gambling activities because of acceptance from our environment. But whatever it is, a gambler must have his reasons for saying or hiding his gambling activities.