How Can I Be Sure by David Cassidy first appeared on the Israeli foreign-music chart on 22 Oct 1972, entering at #25. It peaked at #20 on 29 Oct 1972. In total it spent 2 weeks on the chart, last charting on 29 Oct 1972.
| Wk | Date | Pos |
|---|---|---|
| 1 | 22 Oct 1972 | 25 |
| 2 | 29 Oct 1972 | 20 |