[M-cubed]

Well, if you take it literally, then it’s a mark, on your head or hand <<

Just guessing here... but could “head” mean how you think?....and “hand” mean your actions?

[Star Traveler]

Not according to the language used. I’m not a reader of the original languages, but I have heard those who are (and I’m talking about well-known and trusted people) who have explained that from the original language.

[RoosterRedux]

Just a small point, but here is some of the original language...

Rev 13:16
And he causeth all, both small and great, rich and poor, free and bond, to receive a mark in their right hand, or in their foreheads:

Rev 13:17
And that no man might buy or sell, save he that had the mark, or the name of the beast, or the number of his name.

Notice that the translator stated that the mark is not "on" the right hand but "in" the right hand (though the word "in" in the original text, ἐπί or epi, can mean "upon"). And the greek word used for "right hand" is dexios or δεξιός meaning right hand or metaph -- place of honor or authority (G1188).

Same for forehead.

The mark is not "on" the forehead (metōpon in Greek or μέτωπον -- G3359) but "in" in the forehead.

Keep in mind that this is the same language and the same word used for the Mark of God "in" the forehead of believers in Rev 7:3, Rev 9:4, and Rev 14:1.

The fact that we believers do not have a visible "Mark" on our foreheads would lead us to believe the same will be so with the mark of the Beast.