With time and faith in the commitment to practice frequently, (daily meditating is ideal), during your meditation time you may "leave the moment." A feeling of separation exists where the mind is clear, clean and blank. You will still hear sounds around you, but they will not interfere with your meditation.
Sometimes you may weep -- you may not even be aware of what is making you weep. It is your own emotions having a voice of their own. Sometimes you may feel a smile across your face -- that is contentment showing itself. Sometimes you may fall asleep and awaken truly refreshed.
There is no right or wrong behavior during your meditation. It is your time for you. Everyone deserves this kind of personal attention. This is a self-care activity; loving oneself! Teach it to your children instead of a time-out in their room or corner. Teach it to your friends, family, anyone who will listen. We can share this gift and get back as we give. We are all better because of each person who meditates. The peace and joy felt by those who meditate enters the world for all of us as positive energy. From it the world is a better place. Imagine if we all practiced meditation!