Whenever I drink a jones soda I always fold the metal tabs on the bottle cap out then break them off, place them in the bottle cap, then hold the cap with the metal pieces against my ear and shake it like a rattle. If there's other bottle caps nearby I will stack them. I also chew on the bottom of plastic pop bottles to indent the protrusions on the bottom of them.
After I eat a sucker I suck and chew on the stick, then unroll the paper that makes up the stick till it makes a point then "stab" it against my lips or hold it in my mouth and run my tongue over it.
I'm wondering if anyone else has any rituals/habits that they perform, specifically ones involving food or drink.