Staking (delegating) your Cardano coins to LEND Pool is easy.
Just choose LEND Pool (ticker LEND) from your wallet.
You always keep control of your coins, as they never leave your wallet.
You can spend, transfer, or receive your ADA with no limitation at any time; no lock-up period.
You can delegate from any of these wallets:

Daedalus Wallet
Daedalus is a highly secure wallet for the ADA cryptocurrency which is used for staking. Download and install the Daedalus wallet so you can use it to safely store your ADA. Daedalus will add more cryptocurrencies and be developed over time to become a universal wallet, blockchain application platform and an app store.

Yoroi Wallet
Yoroi is a Light Wallet for Cardano. There is no need to download the blockchain when you open the wallet which makes it far more compatible and decreases the requirements of data storage. The Yoroi Wallet allows you to stake, send and receive transactions right away.

ADALite Wallet
ADALite is an open-source client-side interface for direct interaction with the Cardano blockchain. This wallet supports Trezor & Ledger hardware wallets.
You need the LEND Pool id for this wallet:
664730a4d85918a7d8574df549135228508072916d95cbc0ecd9ac67
The rewards cycle
Epoch 1: Delegation
At the end of the first epoch you delegate to the LEND Pool, a snapshot is taken and your ADA become registered in the pool.
Epoch 2: Active stake
During the second epoch, your stake becomes active in the pool, starting to produce rewards for you.
Epoch: 3 Live stake
During this epoch, the rewards from the epoch 2 are being calculated for payout in the next epoch.
Epoch: 4 Payday
At this time you receive the first payout for epoch 2. You don´t need to claim it; the rewards are deposited directly into your wallet. Rewards form epoch 3 are now being calculated.
Epoch 5: And so on...
Rewards from epoch 3 are paid, at the same time that rewards from epoch 4 are being calculated as long as your stake remains in LEND Pool.