If a person receives a gift from a non-Muslim that they suspect is haram (forbidden), they should:

1. _Verify the source_: Investigate the origin and nature of the gift.
2. _Politely decline_: If confirmed haram, politely decline the gift and explain your reasons.
3. _Return or donate_: If already accepted, consider returning the gift or donating it to a worthy cause.
4. _Show gratitude_: Express gratitude for the thought and kindness behind the gift.