Could we kneel to pray?

We have had zone conferences this week.  The topic has been revelation through prayer, the scriptures (especially the Book of Mormon), and attending church.  As we were talking about prayer-especially about kneeling while we pray--I was reminded of our last lesson with Ivan before he was baptized.  He was so excited about his upcoming baptism and the commitment he was making.  We who he would like to pray at the close of the lesson.  He said that he would--- and he hesitated a bit--but in a way like he wanted to ask something.  Then he said..."could we kneel to pray".  The sisters had not had kneeling prayers with him, yet he felt the need to kneel.  The spirit teaches us humility.