If you know someone that is an SEO reseller you probably do not want to start a conversation about their job. Not that many other conversations about work can be very entertaining anyway so as much as the conversation will sway to the reasons your friend is an SEO reseller you might want to talk about other things. If you do not know what your friend the SEO reseller does for work then you might ask them in the interest of learning something new. However chances are that your friend who is an SEO reseller will probably not want to talk to you about work. Of course there are many exceptions, there are some people who absolutely love talking about their work and will do so at any opportunity that they can get. There are also people at the other end of the spectrum that never like to talk about work outside of work. Usually you will find this out in a normal conversation that you have with people. If your friend the SEO reseller keeps mentioning things about work then it can be safe to assume that he will feel comfortable with you asking about the technicalities of his job. If you are talking to a friend and he or she keeps avoiding the topic of their work then it is probably safer that you do not go any further and start asking about the details of their work. If you do ask them and they feel uncomfortable then you will just make awkward conversation by pressing on the subject. You usually want to move on to talk about something else when this happens. You can ask questions about family but they might even be too impersonal to answer those types of questions, as long as you keep track of the feedback you can adjust the conversation so it is pleasant for both parties involved.