What is the ending of the first season of The Big Bang Theory?

Laird went to comfort Penny again. Penny said Mike had made a new start. Laird took this opportunity to ask Penny out. Surprisingly, Penny agreed.

Sheldon is still practicing his Chinese. He must question the boss in Sichuan in Chinese. Penny asks Sheldon about Laird because he knows him very well. Penny said that before Laird asked her out, she realized that Laird was interested in her, but Laird wasn't her? The type of date she often dates, she is afraid that if she doesn't date Laird successfully, she will lose a good friend. But Sheldon used the usual scientific explanation and Penny's explanation of Schrodinger's cat to describe her relationship with Laird.

At lunchtime, Sheldon accosted China people in broken Chinese. Laird and Sheldon say they may have made a mistake. He can't go out with penny tonight. This is his only chance. He is worried that it will ruin the date. Sheldon is still talking about Hu: Schrodinger's cat. Laird immediately understood. In the evening, Laird dressed up and invited Penny. Laird kissed Penny warmly before she could speak. Sheldon made a scene in the Sichuan restaurant alone. (The first season ends here)