To start using Bitcoin in Kenya, you need to have a Bitcoin wallet. You can either create an online wallet with a reliable provider, such as Coinbase, or you can download a desktop wallet. You will then need to fund your wallet by purchasing Bitcoins. The easiest way to acquire Bitcoins is to use an online exchange, however, there are other options available, such as Bitcoin ATMs or peer-to-peer platforms.
Once you have bought Bitcoins, you can use them to send or receive payments. All you need to do is enter the recipient's Bitcoin address and the amount that you want to send. The transaction will be processed instantly, and the funds will be available in the recipient's wallet almost immediately.