Should I change my tactics during Ramadan?

The population I sell to is occupied by a not insignificant number of people of South Asian and African descent. I know that doesn't make someone Muslim by default, but I am making this generalization bc I'd rather include too many (vs too few) people. 

Typically I bring treats, offer team lunches, etc as part of my role. Its expected from my industry. That said, I do not want to be insensitive to someone who is fasting. So, for those who sell to a large enough population who observes Ramadan, do you/how do you adjust for this? Am I over thinking it?