The simple answer: NOT AT ALL.
As Humberto mentioned "Growth Hacking" is just a concept of low budget and focused marketing approaches.
May I ask, in what professional service is your business located?
Depending on your industry, the first thing i would go for is social-media. In this area there are plenty of great possibilities to hack your business growth.
For example, if you are location based company, I would use the Instagram Hashtags or places to search nearby potential clients.
Or take a facebook group instead or for example a local meetup, which you can host or go to.
In my opinion, the most important thing is, that you bring first value. If you are just looking for a quick sale to get to the next leven, that wont work. Trust has to come first.
This is where social media is a great opportunity to build. I would like to learn more about your business and professional service. If you want we can set up a free call for you. Just follow this link:
Thanks for reading and have a great weekend,