The HPDs I've known have been excellent at playing games with people. Are they easily played by other players? For example, if an ASPD comes along and feeds them a load of manure, will an HPD prove gullible enough to fall for their deceptive charm?
When HPDs get played (generally speaking), is it because of gullibility or desire to be perceived as special or both? If an HPD is gullible, would he even be aware he's being played?
All cases are different. Most HPDs I've been around seem gullible when it comes to people who use flattery as a way to use them. They adore the attention so they don't look beyond the compliments to what is really going on. Most HPDs I know don't look beyond the exterior of others much, anyway (just the ones I know personally).
They also don't know enough about themselves to know they are playing games with people. They do it so naturally, they never consider another course of action. They focus on their role and only their role, not how their actions affect others. Never crosses their minds until it is brought to their attention, then they make an excuse for themselves.
Do you think what makes them good game players also makes them easier to be played by talented others?