What do you like about yourself?
Hi Julie, you can do this without bragging. Focus on your interest. Want to know what I like about myself? I am good at explaining things; I like that about myself because I feel a calling toward education as my field. I have a very bad sense of direction (and style, for that matter), but I am so glad that I am good at explaining things because what is most meaningful to me is the ability to help other people understand stuff.
So answer that question by sharing your aspirations and values with the reader.
Do not just say a general concept, like determined or stubborn. Put it in the context of your academic/professional plan.
For the second question... that is a tough one! I like to always suggest that in any essay you should let the ideas reflect the plan you have, your serious plan that is so meaningful and important to you. How can your plan be reflected in the way you accommodate a guest? :-) Depends what your plan is...