It is very important to make sure that you are in a calm mood when you are near the rabbit/s, especially when s/he is getting to know you. Rabbits are very sensitive, so pick up on your mood easily. If you are frustrated with the rabbit (or even frustrated in general) s/he will pick that up and be less likely to be friendly; if you are upset by not being the bunny's friend, again, s/he will pick this up and might cower from you. Before approaching the rabbit, take some calm, deep breathes and calm yourself down, making your mood neutral (i.e. not any extreme moods). It can also help to remind yourself at this point that your rabbit friend is not being awkward specifically because of you, and that it is not a personal thing; it is the rabbit's past and character that are influencing how s/he acts.
For more tips and also warnings to heed during training, please see this footnote link. Have fun with your bunny!!
Footnotes and further reading:
*****VIDEO!! WOO HOO!!*****
Bunny agility training is very effective today with clicker training! To see some bunnies working with clicker training, here is a link to take you right to the video! They are just AMAZING!!