Though this is your first time playing on certain game, other players will not know about it at all until you play the game. You can act like an idiot if you want since no one will see and watch you directly. However, it will be the different story when you come to the casino.
You can’t show and act like the person who never knows about gambling before because once you do that, people inside the casino will remember you and mark you as their easy target especially the regular players who visit the casino often. Somehow, people who regularly visit casino can differ which one is the professional player and which one is the beginner. This is something easy for them since they will know and guess from the body gestures. Professional players and beginners have different characteristics.
That is why, many people especially beginners don’t want to take a risk to lose their money as soon as they start the game by choosing the real casino to play. They will choose gambling online because it is safer for beginners and the most important thing is they can practice first as long as they want without being disturbed by other players.