How to get someone else's phone number effectively in marketing?

I am not a marketer, but as a potential customer, I am often given my mobile phone number by marketers. Now that I think about it, I don't know if someone else's method is clever or I am soft-hearted. Anyway, I think some methods are quite innovative.

It's just that now my mobile phone text messages are really promotional advertisements sent by various digital numbers, mostly clothes and cosmetics. Let's talk about a few common ones first.

Get a membership card. This is a common method. People often ask about the benefits of membership cards. Generally speaking, the discount is discount, points exchange or points exchange for cash. Not much, but talk is better than nothing. And now most of the membership cards are linked with their mobile phone numbers, and some have no cards or mobile phone numbers directly. For example, I often buy snacks to eat. If I have an Iraqi membership card, I will use my mobile phone number directly.

It will be easy to get the mobile phone number of the target customer when you apply for a membership card, and then you can advertise in groups.

Make a questionnaire. This questionnaire is not made for nothing. You can give gifts or something. Of course, when you do the questionnaire, you should leave your mobile phone number and say you want feedback. Never received feedback, only advertisements, or telephone or SMS advertisements.

Scan wechat. Adding friends to give gifts, now WeChat is actually better and more commonly used than mobile phone number. Some marketing activities saw this trend and began to add friends to give gifts; There is also a photo printer at the entrance of the hotel, and we should also pay attention to the official account of WeChat WeChat, which is the same as scanning WeChat.

In short, it is to use everyone's love and use small things to get everyone's mobile phone number. Of course, there are other ways, such as buying personal information, which is illegal.