Yeah it's very simple, you just buy and have patience to sell at higher prices than what you bought. Though it's not real trading, we call it as hodl process. You need to give your coins unimaginable time to grow into profits and then you are all good to go. However, the challenges that are usually faced by the hodler are: impatient selling, FOMO, emergency sell off's and much more generalized reasons which makes it very difficult to trade the crypto for very long terms. For example, in bitcoin case it's very volatile and it could take off more than 10-20% in single day and usually peeps are scared to loose more money and thus sell in the loss. If you are able to tackle such situations then you are good to go for such type of trades.

However, if you really want to go for day trades, futures and options then it will need extensive knowledge.