Be like Fluttershy. Be tiny but fierce, big-pegasus-style and stake that claim.
"It is a common practice among modern pegasi- and it is thought, alicorns- to express interest in a potential romantic partner through an ancient act known as 'feather-marking'. In this, the pegasus slowly passes by their chosen partner, ruffling their wings. This ruffling of their feathers releases tiny magical particulate from glands along the radius and ulna. These 'scent-markers' are easily detectable by other pegasi and indicate the pegasus' claim upon the potential mate. This act is followed up with a sharp smack across their target's flanks, giving them a concentrated dose of their scent to ward off any potential rivals."
-Sir Attenbirdo, 'The Gryphonia Royal Guide To Avian Equine"










