Sure, to get quickly started use a wallet like [alby](https://getalby.com) which works from your web browser or download [Wallet of Satoshi](https://walletofsatoshi.com)

Once you download either one. Complete the sign up and login process, click on 'receive', find Lightning Address, copy and paste it into your profile in your Nostr Client.

The Nostr client profile field should be called something like 'Bitcoin Lightning Tips' or 'Lightning Address or LNURL'.

Let me know what client you are using and I can help you out better if you still need help.