Why not go out and offer the gift of your company today and for the rest of the year?
It's your choice.
People expect you to follow up as a professional. Now, you don't want to be chasing...ever. If you chase, they run. If you follow the proper pattern of activities and point them in the right direction they'll be chasing you. I use a simple 3-3-3 system. If I call someone 3 times (three weeks in a row so once per week follow up) without a return of any kind, I then move out 3 months.