Most small business owners are not able to invest enough time and money into learning to sell well. However, they then build a business model that depends on selling for success. A woodpile system shifts the focus to buying rather than selling.
A useful phrasebook for everyday conversation. See especially these TIPS and USEFUL PHRASES for interactions with professors and staff at university: http://englishforuniversity.com/phrasebook/excuse-me-could-i-have-a-quick-word-please/