If you are gay or please answer...?

So today I was walking and I saw these two girls holding each other at the waist with one hand. This totally surprised me because I have never seen same couples holding hands or anything in public which really upsets me. I was wondering, if you are with the same (gf/bf) would you do PDA? Like holding hands and maybe a kiss, not full on making out. Or would you pretend your not together because of what other people would think?