Back in my early 20's I had two totally catastrophic transitioning tests (I do not apologize for alliterations). I was 6ft, Big boned, deeper then average male voice, in a world and time filled with the average woman being 5'6 and guys about 5'10. Oh, and we are talking the late 70's. NOT remotely a gay friendly time, much less T remotely knowing what trans was beyond a drag-queen. I got a lot of the stares and snickers. Teens, especially the girls are THE WORSE knowing they are essentially bullet-proof from any retaliation.
Today my experiences of being out in the real world as the real me are far different. Stares I take as a confirmation of my last mirror experience; "Pretty good looking for an lady". No snickers at all from what I am aware of. And believe me I am hyper aware of such things after being a fat, stuttering four-eyed, knuckle dragging, mouth breathing "Target" all of my childhood and later in life.
From your avatar I cannot see why or how you can be getting clocked. I always go out of my way to present as unambiguously female as possible. Loving girlie-girl helps, but I also do jeans and cute tops. The entire look goes into the first impression you make. That also includes body language and demeanor. Plus, there is "Situational Awareness". Are you in places or situations that may bring out the worse (or truth) in some people?