Can someone help me because I can't think of an example 1. Provide an example of being sincere.

2. How does that example show sincerity?

Shannon showed a lot of being a sincere friend by always helping without me asking her or asking for anything in return. Shannon also always asked if I wanted some of whatever she’s eating. Telling me I’ll be ok when I’m sad. Shannon is being a sincere friend

The example that shows sincerity which is i above statement. Without asking for return. Helping without you asking. Making sure your okay.