She wont take gifts when her suspicion is high, you can definitely give her the gifts at the start of the week though. Putting her clothes and blanket back on before ending the session helps keep suspicion low I think.
Hi,
What MrLonelyyyy wrote is correct, but there's more to it than that, you might want to check out our wiki page dedicated to the Suspicion mechanic
Also while we're in the topic of the night, there's also a separate page about night sequence explaining various things that you might want to check out as well.
Cheers