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When it comes to refining your poker face, you need to find out what works for you. It likewise depends upon how significant the stakes are, if you are playing poker with your buddies for a bit of pocket change then a poker face is not important (but these are the times where you can ideal it) if you are involved in much more serious video games then you certainly have to deal with your poker face.
Don't put all your chips out there
In poker there is no such thing as "rather be safe than sorry" in truth it is more like "go big or go home" however if you are new to the poker world you may want to take this into consideration. In the meantime if you are new there is no need to put all of your chips on the table.