Alex Birkett is HubSpot's Senior Growth Marketing Manager, and he specializes in the area of user acquisition. Prior to his current stint at HubSpot, Alex worked as a Growth Marketing Manager in ConversionXL, where he grew ConversionXL's blog to 3 million visits per year. In this UpLead Growth Chat, we sat down with Alex Birkett to pick his brain on startups, user acquisition, and conversion techniques.