For the first time I did not watch

For the first time I did not watch the first half of an advertisement and I just watched the second
half. Because the product is endorsed by a celebrity and because of his attractiveness, I paid
more attention to the advertisement. I watched the ad a few more times. My deeper impression
causes me to try the product. For example, when I need to buy a toothbrush, I remember the
endorsed brand of the toothbrush (Female, form 3).