It's just a game and a wink lol. If you feel awkward when your boyish friend does that to you, you are probably h0m0.
I went through an awkward stage last year when I would instinctively wink at people when I said bye and then immediately regret it with the shame of the world on my shoulders. For example, I would be in a convenience store, pay for my items, and whilst wishing them a fantastic day, wink at them (regardless of gender) and walk away. So now when someone winks at me, I'm either aroused or have horrible flashbacks. Wink at me with caution.