A short scenario to understand:
Step 1) New Buyer/Client sends you a message and is interested in your services
Step 2) You start a discussion on what are his needs where he explains everything to you vice verca
Step 3) He requests a sample of your work from your portfolio that will help him decide
Step 4) You provide your portfolio or a sample of your past work and let him have his time to contact you for a start
Step 5) …? Is it better to let him message you again whenever he feels like or should you message him first and ask him if he wants to start?
Edit: I don’t feel there’s a right/wrong kind of approach. It always depends on the situation, but I’d like to read some feedback from your experience.