Use your opposite hand
This was actually pretty easy for me... Being a lefty I have had to compromise with right handed things my whole life... bowling, scissors, etc... I also used to spend hours doodling and writing with my right hand.
I had purchased this stamp at the Scrapbook Expo in May. It reminded me of my girlfriends. I did a pretty good job coloring with my Copics and only went out of the lines a few times. Don't ya love Brenda's tan!!