As an am employer you may find it hard to get the balance between being a boss and being friendly. Just because you are an employer does not mean you always have to be firm, but it does mean you need to consider the way in which you communicate with your employees and maintain a level of profession.
If you are generally a friendly person then you may find it hard to distance yourself slightly from your employees but if you start to act like a member of staff rather than the boss, you may find you do not get the respect and attitude you need to when it’s required.
As an employer it is often better to go in hard to start with and then over time soften a little so people can see that you are not to be messed with but are also fair and approachable. It is important to be able to give your employees a level of trust but also to not take your eye off the ball and be aware of what is going on within the company at all times.