It will be better to study first an aggregator like Coinatmradar; there you can see which ATMs allow you to exchange Bitcoin for cash and which do not.

Besides, all crypto exchanges have an option of selling “the digital gold”. To use such a platform, you need to decide how much you want to trade in cryptocurrency.

For example, if you are an institutional investor or trader, GDAX and Gemini will suit you. If you do not trade in cryptocurrencies professionally, turn your attention to Coinbase, Kraken, Bitstamp, Poloniex, and others.

Each crypto exchange has its interface, some of them offer clients related services, for example, secure storage. Some platforms need verification of your identity, so be careful if you want to remain anonymous.

An alternative to selling is exchanging Bitcoin for other cryptocurrencies. The web-site ShapeShift is designed exactly for this - you can easily work with Bitcoin, Ether, Litecoin, XRP there.

Another option is direct selling. Sign up as a seller on LocalBitcoins, BitQuick, Bittylicious, and BitBargain, and interested buyers will contact you if they like your price. Usually the purchase is made through a bank account. When money comes to your deposit, you can transfer Bitcoin to a specified wallet.

If you want to give Bitcoin to your family or friends, help them set up a cryptowallet.

And be careful: it’s better not to meet with strangers to personally exchange digital assets for cash.