When to text somone after meeting them?

I recently met this really nice girl say on the Monday for example, and whilst talking we got onto texting after meeting people and the three day rule about texting somebody after you meet them and she said she thought that was a stupid rule and the guy should text her the next day/evening after meeting them, she also said it wouldn't go a miss to text her the same night just to make sure she got in OK, now the question is should I text her 2 days after meeting her say on the Wednesday as to show I'm not desperate or should I just text her on the Tuesday evening/day like she said the next day because obviously I don't want to be the one not wearing the trousers?

Most Helpful Girl

  • Text her the next night, that's what she specifically said