No. 10.
Volunteer at a veteran's outreach program. Say thank you by giving your time.

No. 9.
Buy a meal for a homeless vet. They sit/stand by the side of the road holding signs.

No. 8.
Fly your flag. Independence Day and Memorial Day and Veteran's Day, participate.

No. 7.
Look for a community Veterans Day event and then participate.

No. 6.
Send a thank you card to everyone you know who has ever served in the military.

No. 5.
Change your Facebook page to feature a veteran.

No. 4.
Recruiters work a tough job and long hours, give these guys a little cheer.

No. 3.
Ask a loved one for stories about their time in service, and listen patiently.

No. 2.
Make your life worth dying for, strive to be worth their sacrifice.

And the No. 1 way...
Just say "thank you." Take a moment to thank a veteran for his or her service.