General aviation pilot reported a near miss with a landing helicopter on the FBO ramp when starting to taxi. The pilot noticed the landing helicopter and stopped; the helicopter aborted the landing and the pilot continued to taxi on the ramp.

Narrative

My plane (a high wing Cessna 182q) was parked between two big business class Jets. I had just started my engine when one of the ground crew walked infront of me (about 35 feet) and stopped right in front of me. I thought that she was trying to marshal me out from between the two bigger jets. However; it was confusing because; even tho she was directly in front of me; she did not look directly at me. Between the tall vertical stabilizer/rudder of the big jet next to me and my high wing I could not see anything to my left. When I eased out from my space; I was looking for something on the ground that I needed to avoid. When I cleared the big fin and turned enough that I could look up past my wing; I saw that there was a helicopter coming in too land. I STOPPED. When the helicopter continued to hover and then backed up; I took that as a signal from the helo pilot that I should complete the turn and clear the area. I did. Once I cleared the area; I moved to a different area on the ramp and called the FBO on Unicom to let them know what happened. A couple of minutes later; I also talked to ZZZ Ground and reported what had happened. I don't know the state of the ground crew after me spotting the Helo; I was solely focused on the Helo.Lessons learned; when a situation seems confusing; go slowly. When I spotted the Helo; I was going really slowly and was able to quickly stop. Only when it was clear that the Helo pilot was waiting for me to move did I finish my turn. I believe that the Helo could have continued to a landing but it was better that he backed up and allowed me to clear the area.The ground crew needs to be more aware of the state of the other planes in the area. Even tho I started my engine as she was walking into position (in front of me); It was clear (in retrospect) that she did not even know that I was about to move. If she had been aware that my engine was started; she could have indicated to me that I needed to stay where I was (or even cut my engine) In retrospect; I could have realized that the situation was confusing and waited a little bit longer for things to become clearer. Suggestions: Better training for the ground crew. Especially on situational awareness. My plane had been the focus of significant activity while I packed the baggage; did the preflight; loaded oil; etc. etc. It had been clear for 30+ min that I was getting ready to leave. It should not have been a surprise that my engine was starting. A simple 'stop' hand signal would have been enough to let me know that she knew that I was there and that she needed me to stay put.