This is where setting rules or just finding a group who agree on the tone of a game is important. However, even in that some people will have things they do want to role play like shopping. Well be a good role player and make it interesting for them or even turn that shopping into something more. Ask the shopkeep if there’s anything he’s wanted that’s super rare (relic hunt quest), or straight up leave the store. It’s role playing go to a different part of town, you don’t spend 100% of your time irl with anyone why do that in a game? Cause havoc, or don’t, jump into the sewer, fascinate the locals by setting off fireworks or do spells, go to a bar get drunk and do role play karaoke while the guy shops. Have fun, it’s your role play too