A photography session is not just a set amount of time for one client to be photographed. A session is a hour or two of photographing their interactions. Give the client something to look back on. Every photograph you take will really be more about who you are. Your clients will see who you are within the photographs you take for them. Show off who you are, but deliver what they want. There is a common balance and any good photographer can find that balance easily. Don't be shy, be outgoing. Be what you would want your photographer to be. Take charge. The outcome of your photographs is from your point of view.