Bids are another term for buy orders. Offers are sell orders.

You hit a bid if you are trading on the left-hand side of your dealer’s price quote.

You “lift” or “pay” offers on the right-hand side of the quote.

Also if we say we hear “left-hand side” interest at a fixing, that means customers are looking to hit bids, or sell. Right-hand side, means customers are looking to buy from the market-maker…