You can send money to any friend by using either his/her HandCash $handle or Paymail address. Most of other Bitcoin SV wallet apps already offer Paymail, which in short is just your Bitcoin address. It looks
just like an email address, but with the domain provider of a Bitcoin SV wallet service. For example, it could be firstname.lastname@example.org or email@example.com.
Alternatively, you can send money to any valid Bitcoin SV legacy address. Just copy the receiving address, go to "Send Money" and a dialog will pop up asking if you want to use the copied address as receiver for a payment.
Your friends can send you money to your $handle or through your personall handcash.me page (i.e handcash.me/john). If they are not using HandCash, they can use your Paymail address. For example, if your handle is $alex, your Paymail address for HandCash would be firstname.lastname@example.org - You can check yours at "+ > Receive" just to be sure! Alternatively you can get paid to a Bitcoin SV legacy address by scanning your QR code under "Display my BSV address".