My guy, don’t worry, this is normal around straight people
Think about it this way: as a straight guy, would you be gabbing girls’ thighs and pulling their shirts all the time? (I hope that the answer is no, or I would be concerned) Similarly, guys who are gay don’t act like this all the time (believe me, i know, there’s a few of those around my school, and they usually sit with the girls)
When straight people do this, it’s usually exaggerated so much that it becomes satirical, and honestly it almost happens that the straightest people are the ones who act the “gayest”. Honestly, i would be much more comfortable around someone who acts “gay” as satire than someone who doesn’t do anything at all. So if you want them to see you as straight, then slay, brother.