One simple, but potentially TMI, method is to drink more water. Not only is the water good for you, but the increased water means more frequent trips to the bathroom, walking each way. And don't use the bathroom closest to you…choose the one on the far side of the building.
When I answer the phone, I stand up. Not exactly moving per se, but at least not sitting.
I don't smoke, so no smoke breaks for me, but I still take the time that would have gone for smoke breaks to instead simply walk around. This is a great time to network, stop by the desks of coworkers and check in with them, see how they're doing. Not stand and chat for 10 minutes, just a quick, "hi, how's your son, you need anything from me?" and keep going.
I think your post is spammy, honestly, OP. But if you really want guidance, I'd suggest this thread:
In that thread, many MFP-ers share their ideas for increasing movement via daily life activity.
Your first post and you’re promoting some Indian website for a company no one’s heard of. Hmm… 🤔