Yes, those sentences work. The use of "during" and "while" in these sentences is accurate and appropriate :)

Yes, the sentences generally work well. Here are the slightly refined versions for clarity: 4. Can you wait for me while I try on this dress? * Correct as is. 5. I was asked a lot of questions during my favorite seminar. * "Favorite" is correct in American English. If you are using British English, it should be "favourite." 6. Don't open the door while it's moving. * Correct as is. All the sentences are grammatically correct and use "during" and "while" appropriately.

Natalie gave an excellent answer.

while I'm trying