Observations I have found on the criteria Buffett uses to start a position:

- PE and FWD PE must be below 15
- P/FCF under 10
- Profit Margin above 15%
- ROI above 10%
- Profitable
- Dividend payment
- EPS over the last 5 years above 20%
- Competent Management

Screen this and you can buy like Buffett.