So, first things first, you can totally use Tinder on a laptop, and it's basically the same as using it on your phone. You just need to go to the Tinder website and log in with your Facebook account or phone number. Easy peasy!
Once you're in, you can start swiping through profiles, just like on the app. It's actually kinda nice to have a bigger screen to look at all the potential matches. You can also use your keyboard to type messages, which is way faster than typing on your phone.