right click to set flash player

When I go to my free poker site to play, I get a message telling me to right click to set up flash player. I use a chrome 55 chromebook which has a square control pad and no mouse so I do not have the ability to "right click", is my flash player already running, is this right click instruction a valid one and is my chrome 55 just getting this instrution pointlessly, I have done as much as I can to get these questions answered and am running out of options, any info on this will be most appreciated, thanks people. Dave