We hope that this response reaches you in the best of health and Imaan. Ameen inshaAllah.
It is ok so say Alhamdulillah around non-Muslims. However, it is best to refrain from saying "Assalaamu Alaikum" or "Jazak Allah" to them because both are in essence duas you bestow on Muslims. One dua you can make for a non-Muslim is a dua that Allah Ta'ala grants them guidance and hidayah.
In order to show good manners (akhlaaq), though, one may greet a non-Muslim with a kind dua such as "May Allah grant you righteousness and guidance."
And instead of saying "Jazak Allah", you may use words such as "Thank you" to show your gratitude.
And Allah Knows best
And Allah knows best.
Ask Alimah Team
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