Commander Riker from Star Trek: The Next Generation has many obvious character traits, such as playing the trombone, being successful with the ladies, and having a beard. There’s one crucial part of his personality you may have missed, though: He sits down like a maniac. Instead of lowering himself into a chair, the way most human beings do, he swings his gargantuan legs over the top of the chair, mounting it like it’s a Shetland pony. He even gets up in the same fashion.
While the in-universe explanation may be a side effect of some kind of salt vampire STD or whatever, the real-life reason is reportedly that actor Jonathan Frakes suffered a back injury in his youth. This would also explain why Riker is constantly leaning on things and resting his leg, even when it means awkwardly positioning his junk inches away from Data’s face.