"Thank You" during COVID

[JoelleEmmily]

I'm more than a little hesitant about using the sign for "thank you" during this... unique procession of events... I find myself feeling uncomfortable bringing my hands anywhere near my mask, and I feel more than a little embarrassed by what it might look like to another person doing so. I've kinda defaulted to signing yes, which seems to get the point across at shops and what not, but I also think it might come across as a little rude? I'm kinda new to signing frequently, prior to people wearing masks, I could hear and understand most people for the most part, but a sudden increase in my tinnitus symptoms and people speaking through several layers of protection, I understand almost nothing. My understanding of BSL and ASL is rather limited, and I can't really think of or find an alternative for "thank you" that feels natural. Does anyone have any suggestions?