I used to get those looks all the time (occasionally still notice those types of stares, but pay them no mind), even before HRT (but fixed up pretty), and usually it was when men were in groups (then you have all these eyes on you, salivating). But, it didn't bother me much, so long as that is all it is, think of it as a compliment, they find you hot, what can they say, they can't help but look. You'll get used to it and after a while may not even pay them any attention.