Do not accept beverages from someone you don't know and trust. Always watch your drink and never leave it unattended. Don't take silence as consent. Don't have sex with anyone who is drunk. Be aware that having intercourse with someone who is unable to give consent or is physically helpless is rape.
Most acquaintance rapes involve alcohol or drugs.
Both men and women should avoid drugs and excessive alcohol in a dating situation. Don't allow your judgement to become impaired. Seek education on rape prevention.