For example, i don't play a lot or for long time (i play games spot during my free time), so i have no idea about, but i trade forex all day and when i had a significant loss i usually turn off my Pc and i go out for a drink , just for not run behind loss.
n addicted gambler is easy to spot. Betting haphazardly wothout thought, drunk senseless and playing from dusk till dawn. There are also addicted gamblers who are clean and methodical and this are much more harder to spot but there are still tells and that is how they twitch when they are not playing or how they go back again and again even if they were beaten last night
Actually, I will have to say that, spotting who are gambler addict does not necessarily requires to base it on their physical outlook. Most of the time, we can notice a gambling addict the way they act. Their attitude. I know some gambling addicts that aren't really haphazard and drunkard. I think we will know that he is an addict gambler when they commit their time in Casinos and use as much money as they can in gambling. Also, when they tend to sell most of their assets just to regain what they have lost in the previous games.