2H/S: 6-10 HCP (a bit stronger in 4th seat), 6+ card suit

• 3/4H/S: Pre-empt
• 2NT: Asking for second suit or feature
• 3H/S: No second suit, no feature
• Other suit: 4+ suit or feature
• 3NT: AKQxxx
• New suit: 6+ suit, round forcing