I interview for fun as a habit, and pair programming is definitely my favorite kind of interviewing. Like I still get nervous even for interviews I have no intention of following up on, but a lot of those butterflies go away when they mention there will be pair programming. It's just more fun, I get to meet a specific engineer at their company, and I feel like they get their answer way better than if they'd used another technique. Answer as in "is this dude who we're looking for?".
I started "practicing" my interview skills a few years ago by... interviewing with companies. Interviewing is great for keeping your skills fresh, for learning new things, and for meeting cool people working on cool projects. It's a lot of fun! And it has the added benefit of giving you opportunities at new companies, if you end up finding a better position than the one you're in. Just keep it on the DL from management at your current company. For some reason, they don't like it when employees do that.
